Use After Free Affecting kernel-debug package, versions <0:3.10.0-1160.59.1.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELDEBUG-2317307
  • published14 Dec 2021
  • disclosed28 Jul 2021

Introduced: 28 Jul 2021

CVE-2021-0920  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-debug to version 0:3.10.0-1160.59.1.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

CVSS Scores

version 3.1