Out-of-bounds Write Affecting xorg-x11-server-devel package, versions <0:1.20.4-18.amzn2.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.08% (39th percentile)

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  • Snyk IDSNYK-AMZN2-XORGX11SERVERDEVEL-3042982
  • published12 Oct 2022
  • disclosed1 Sept 2022

Introduced: 1 Sep 2022

CVE-2022-2320  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 xorg-x11-server-devel to version 0:1.20.4-18.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1856.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-devel package and not the xorg-x11-server-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

CVSS Base Scores

version 3.1