CVE-2021-47464 audit: fix possible null-pointer dereference in audit_filter_rules

2024-05-2206:23:24

Linux

www.cve.org

audit

filter

rules

vulnerability

linux

kernel

cve-2021-47464

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.6%

JSON

In the Linux kernel, the following vulnerability has been resolved:

audit: fix possible null-pointer dereference in audit_filter_rules

Fix possible null-pointer dereference in audit_filter_rules.

audit_filter_rules() error: we previously assumed ‘ctx’ could be null

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/auditsc.c"
    ],
    "versions": [
      {
        "version": "bf361231c295",
        "lessThan": "d6f451f1f60c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf361231c295",
        "lessThan": "16802fa4c33e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf361231c295",
        "lessThan": "4e9e46a70020",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf361231c295",
        "lessThan": "6e3ee990c904",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/auditsc.c"
    ],
    "versions": [
      {
        "version": "5.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.156",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.76",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.14.15",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]