<p>Upgrade <code>Alpine:3.20</code> <code>xorg-server</code> to version 21.1.5-r0 or higher.</p>

Out-of-bounds Write Affecting xorg-server package, versions <21.1.5-r0

Threat Intelligence

7.53% (95^th percentile)

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Snyk ID SNYK-ALPINE320-XORGSERVER-7015245
published 23 May 2024
disclosed 14 Dec 2022

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Introduced: 14 Dec 2022

CVE-2022-46340 Open this link in a new tab CWE-787 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 xorg-server to version 21.1.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-server package and not the xorg-server package as distributed by Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

Out-of-bounds Write Affecting xorg-server package, versions <21.1.5-r0

Severity

Snyk's Security Team recommends NVD's CVSS assessment