Use After Free Affecting kernel-doc package, versions <0:3.10.0-1160.118.1.0.1.el7


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.55% (42nd percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELDOC-6673680
  • published25 Apr 2024
  • disclosed6 Sept 2023

Introduced: 6 Sep 2023

CVE-2023-4622  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-doc to version 0:3.10.0-1160.118.1.0.1.el7 or higher.
This issue was patched in ELSA-2024-2004.

NVD Description

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

A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation.

The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.

We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.

CVSS Base Scores

version 3.1