Auto-merge PR#1122

Auto-merge PR#1122
This commit is contained in:
CVE Team 2021-03-23 13:45:25 -04:00 committed by GitHub
commit 1a40c02c79
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -1,18 +1,118 @@
{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security@ubuntu.com",
"DATE_PUBLIC": "2021-03-23T00:00:00.000Z",
"ID": "CVE-2021-3444",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Linux kernel bpf verifier incorrect mod32 truncation"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "kernel",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "trunk",
"version_value": "5.12-rc1"
},
{
"version_affected": "<",
"version_name": "5.11",
"version_value": "5.11.2"
},
{
"version_affected": "<",
"version_name": "5.10",
"version_value": "5.10.19"
},
{
"version_affected": "<",
"version_name": "5.4",
"version_value": "5.4.101"
}
]
}
}
]
},
"vendor_name": "Linux"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "De4dCr0w of 360 Alpha Lab"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"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."
"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. "
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-681: Incorrect Conversion between Numeric Types"
}
]
}
]
},
"references": {
"reference_data": [
{
"refsource": "CONFIRM",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b00f1b78809"
},
{
"refsource": "CONFIRM",
"url": "https://www.openwall.com/lists/oss-security/2021/03/23/2"
}
]
},
"solution": [
{
"lang": "eng",
"value": "Apply or update to a kernel that contains the commit 9b00f1b78809 (\"bpf: Fix truncation handling for mod32 dst reg wrt zero\")."
}
],
"source": {
"discovery": "EXTERNAL"
}
}