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GRUB2 vulnerability details
This commit is contained in:
Avital Ostromich
parent
2758851ff7
commit
a89047f5f5
@ -1,18 +1,158 @@
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{
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"data_type": "CVE",
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"ASSIGNER": "security@ubuntu.com",
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"DATE_PUBLIC": "2020-07-29T17:00:00.000Z",
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"ID": "CVE-2020-15705",
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"ASSIGNER": "cve@mitre.org",
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"STATE": "RESERVED"
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"STATE": "PUBLIC",
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"TITLE": "GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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"product": {
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"product_data": [
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{
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"product_name": "grub2 in Ubuntu",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "20.04 LTS",
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"version_value": "2.04-1ubuntu26.1"
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},
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{
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"version_affected": "<",
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"version_name": "18.04 LTS",
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"version_value": "2.02-2ubuntu8.16"
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},
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{
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"version_affected": "<",
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"version_name": "16.04 LTS",
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"version_value": "2.02~beta2-36ubuntu3.26"
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},
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{
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"version_affected": "<",
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"version_name": "14.04 ESM",
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"version_value": "2.02~beta2-9ubuntu1.20"
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}
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]
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}
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}
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]
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},
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"vendor_name": "Ubuntu"
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}
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]
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}
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},
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"credit": [
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{
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"lang": "eng",
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"value": "Mathieu Trudel-Lapierre"
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||||
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||||
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||||
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
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"value": "GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions."
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}
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]
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||||
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||||
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||||
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"cvss": {
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"attackComplexity": "HIGH",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 6.4,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "HIGH",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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}
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},
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"problemtype": {
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-347 Improper Verification of Cryptographic Signature"
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}
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]
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}
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]
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},
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"references": {
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"reference_data": [
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{
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"name": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/",
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"refsource": "CONFIRM",
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"url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
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},
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{
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"name": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass",
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"refsource": "UBUNTU",
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"url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass"
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},
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{
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"name": "http://ubuntu.com/security/notices/USN-4432-1",
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"refsource": "UBUNTU",
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"url": "http://ubuntu.com/security/notices/USN-4432-1"
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},
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{
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"name": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot",
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"refsource": "DEBIAN",
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"url": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot"
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},
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{
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"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011",
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"refsource": "CONFIRM",
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"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011"
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},
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{
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"name": "https://access.redhat.com/security/vulnerabilities/grub2bootloader",
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"refsource": "REDHAT",
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"url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
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},
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{
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"name": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/",
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"refsource": "SUSE",
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"url": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/"
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},
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{
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"name": "https://www.suse.com/support/kb/doc/?id=000019673",
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"refsource": "SUSE",
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"url": "https://www.suse.com/support/kb/doc/?id=000019673"
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},
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{
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"name": "https://www.openwall.com/lists/oss-security/2020/07/29/3",
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"refsource": "CONFIRM",
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"url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
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},
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{
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"name": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html",
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"refsource": "CONFIRM",
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"url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
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}
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]
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},
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"source": {
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"advisory": "USN 4432-1",
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"defect": [
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"https://launchpad.net/bugs/1801968"
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],
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"discovery": "INTERNAL"
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}
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}
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}
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@ -1,18 +1,155 @@
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{
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"data_type": "CVE",
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||||
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"DATE_PUBLIC": "2020-07-29T17:00:00.000Z",
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"ID": "CVE-2020-15706",
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"ASSIGNER": "cve@mitre.org",
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"STATE": "RESERVED"
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"STATE": "PUBLIC",
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"TITLE": "GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing."
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "grub2 in Ubuntu",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "20.04 LTS",
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"version_value": "2.04-1ubuntu26.1"
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},
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{
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"version_affected": "<",
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"version_name": "18.04 LTS",
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"version_value": "2.02-2ubuntu8.16"
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},
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{
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"version_affected": "<",
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"version_name": "16.04 LTS",
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"version_value": "2.02~beta2-36ubuntu3.26"
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},
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{
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"version_affected": "<",
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"version_name": "14.04 ESM",
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"version_value": "2.02~beta2-9ubuntu1.20"
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}
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]
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}
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}
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]
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},
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"vendor_name": "Ubuntu"
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}
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]
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}
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},
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"credit": [
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{
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"lang": "eng",
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"value": "Chris Coulson"
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||||
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||||
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||||
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|
||||
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||||
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
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"value": "GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions."
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}
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]
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||||
},
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||||
"generator": {
|
||||
"engine": "Vulnogram 0.0.9"
|
||||
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|
||||
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|
||||
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|
||||
"attackComplexity": "HIGH",
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||||
"attackVector": "LOCAL",
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||||
"availabilityImpact": "HIGH",
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||||
"baseScore": 6.4,
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||||
"baseSeverity": "MEDIUM",
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||||
"confidentialityImpact": "HIGH",
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||||
"integrityImpact": "HIGH",
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||||
"privilegesRequired": "HIGH",
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"scope": "UNCHANGED",
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||||
"userInteraction": "NONE",
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||||
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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||||
}
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||||
},
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"problemtype": {
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||||
"problemtype_data": [
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||||
{
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||||
"description": [
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{
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"lang": "eng",
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"value": "CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)"
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}
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]
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}
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]
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||||
},
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"references": {
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"reference_data": [
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||||
{
|
||||
"name": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/",
|
||||
"refsource": "CONFIRM",
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||||
"url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
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},
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{
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"name": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass",
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"refsource": "UBUNTU",
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"url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass"
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},
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||||
{
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||||
"name": "http://ubuntu.com/security/notices/USN-4432-1",
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"refsource": "UBUNTU",
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"url": "http://ubuntu.com/security/notices/USN-4432-1"
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},
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{
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"name": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot",
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"refsource": "DEBIAN",
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"url": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot"
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||||
},
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||||
{
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||||
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011",
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||||
"refsource": "CONFIRM",
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||||
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011"
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||||
},
|
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{
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||||
"name": "https://access.redhat.com/security/vulnerabilities/grub2bootloader",
|
||||
"refsource": "REDHAT",
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||||
"url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
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||||
},
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||||
{
|
||||
"name": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/",
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||||
"refsource": "SUSE",
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||||
"url": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/"
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||||
},
|
||||
{
|
||||
"name": "https://www.suse.com/support/kb/doc/?id=000019673",
|
||||
"refsource": "SUSE",
|
||||
"url": "https://www.suse.com/support/kb/doc/?id=000019673"
|
||||
},
|
||||
{
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||||
"name": "https://www.openwall.com/lists/oss-security/2020/07/29/3",
|
||||
"refsource": "CONFIRM",
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||||
"url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
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},
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{
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"name": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html",
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"refsource": "CONFIRM",
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"url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
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}
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]
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},
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"source": {
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"advisory": "USN 4432-1",
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"discovery": "INTERNAL"
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}
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}
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||||
}
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@ -1,18 +1,159 @@
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{
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
"DATE_PUBLIC": "2020-07-29T17:00:00.000Z",
|
||||
"ID": "CVE-2020-15707",
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"ASSIGNER": "cve@mitre.org",
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"STATE": "RESERVED"
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"STATE": "PUBLIC",
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"TITLE": "GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow."
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "grub2 in Ubuntu",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "20.04 LTS",
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"version_value": "2.04-1ubuntu26.1"
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},
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{
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"version_affected": "<",
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"version_name": "18.04 LTS",
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"version_value": "2.02-2ubuntu8.16"
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||||
},
|
||||
{
|
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"version_affected": "<",
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||||
"version_name": "16.04 LTS",
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"version_value": "2.02~beta2-36ubuntu3.26"
|
||||
},
|
||||
{
|
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"version_affected": "<",
|
||||
"version_name": "14.04 ESM",
|
||||
"version_value": "2.02~beta2-9ubuntu1.20"
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
]
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},
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"vendor_name": "Ubuntu"
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||||
}
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]
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||||
}
|
||||
},
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||||
"credit": [
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{
|
||||
"lang": "eng",
|
||||
"value": "Colin Watson"
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||||
},
|
||||
{
|
||||
"lang": "eng",
|
||||
"value": "Chris Coulson"
|
||||
}
|
||||
],
|
||||
"data_format": "MITRE",
|
||||
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|
||||
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|
||||
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|
||||
"description_data": [
|
||||
{
|
||||
"lang": "eng",
|
||||
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
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"value": "Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions."
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}
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]
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||||
},
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||||
"generator": {
|
||||
"engine": "Vulnogram 0.0.9"
|
||||
},
|
||||
"impact": {
|
||||
"cvss": {
|
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"attackComplexity": "HIGH",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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||||
"baseScore": 5.7,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
|
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"integrityImpact": "HIGH",
|
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"privilegesRequired": "HIGH",
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||||
"scope": "UNCHANGED",
|
||||
"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H",
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"version": "3.1"
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}
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||||
},
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"problemtype": {
|
||||
"problemtype_data": [
|
||||
{
|
||||
"description": [
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||||
{
|
||||
"lang": "eng",
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||||
"value": "CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)"
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}
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||||
]
|
||||
}
|
||||
]
|
||||
},
|
||||
"references": {
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||||
"reference_data": [
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||||
{
|
||||
"name": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/",
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"refsource": "CONFIRM",
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"url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
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||||
},
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||||
{
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"name": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass",
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"refsource": "UBUNTU",
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"url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass"
|
||||
},
|
||||
{
|
||||
"name": "http://ubuntu.com/security/notices/USN-4432-1",
|
||||
"refsource": "UBUNTU",
|
||||
"url": "http://ubuntu.com/security/notices/USN-4432-1"
|
||||
},
|
||||
{
|
||||
"name": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot",
|
||||
"refsource": "DEBIAN",
|
||||
"url": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot"
|
||||
},
|
||||
{
|
||||
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011",
|
||||
"refsource": "CONFIRM",
|
||||
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011"
|
||||
},
|
||||
{
|
||||
"name": "https://access.redhat.com/security/vulnerabilities/grub2bootloader",
|
||||
"refsource": "REDHAT",
|
||||
"url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
|
||||
},
|
||||
{
|
||||
"name": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/",
|
||||
"refsource": "SUSE",
|
||||
"url": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/"
|
||||
},
|
||||
{
|
||||
"name": "https://www.suse.com/support/kb/doc/?id=000019673",
|
||||
"refsource": "SUSE",
|
||||
"url": "https://www.suse.com/support/kb/doc/?id=000019673"
|
||||
},
|
||||
{
|
||||
"name": "https://www.openwall.com/lists/oss-security/2020/07/29/3",
|
||||
"refsource": "CONFIRM",
|
||||
"url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
|
||||
},
|
||||
{
|
||||
"name": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html",
|
||||
"refsource": "CONFIRM",
|
||||
"url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
|
||||
}
|
||||
]
|
||||
},
|
||||
"source": {
|
||||
"advisory": "USN 4432-1",
|
||||
"discovery": "INTERNAL"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user