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Auto-merge PR#1122
Auto-merge PR#1122
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commit
1a40c02c79
@ -1,18 +1,118 @@
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{
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"data_type": "CVE",
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"data_format": "MITRE",
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"data_version": "4.0",
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"CVE_data_meta": {
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"ASSIGNER": "security@ubuntu.com",
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"DATE_PUBLIC": "2021-03-23T00:00:00.000Z",
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"ID": "CVE-2021-3444",
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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": "Linux kernel bpf verifier incorrect mod32 truncation"
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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": "kernel",
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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": "trunk",
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"version_value": "5.12-rc1"
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},
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{
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"version_affected": "<",
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"version_name": "5.11",
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"version_value": "5.11.2"
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},
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{
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"version_affected": "<",
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"version_name": "5.10",
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"version_value": "5.10.19"
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},
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{
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"version_affected": "<",
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"version_name": "5.4",
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"version_value": "5.4.101"
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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": "Linux"
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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": "De4dCr0w of 360 Alpha Lab"
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}
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],
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"data_format": "MITRE",
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"data_type": "CVE",
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"data_version": "4.0",
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"description": {
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"description_data": [
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{
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"lang": "eng",
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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": "The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker with the ability to load bpf programs could use this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in the upstream kernel in commit 9b00f1b78809 (\"bpf: Fix truncation handling for mod32 dst reg wrt zero\") and in Linux stable kernels 5.11.2, 5.10.19, and 5.4.101. "
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}
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]
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},
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"generator": {
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"engine": "Vulnogram 0.0.9"
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},
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"impact": {
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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": 7.8,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/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-681: Incorrect Conversion between Numeric Types"
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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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"refsource": "CONFIRM",
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b00f1b78809"
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},
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{
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"refsource": "CONFIRM",
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"url": "https://www.openwall.com/lists/oss-security/2021/03/23/2"
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}
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]
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},
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"solution": [
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{
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"lang": "eng",
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"value": "Apply or update to a kernel that contains the commit 9b00f1b78809 (\"bpf: Fix truncation handling for mod32 dst reg wrt zero\")."
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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}
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}
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