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CVE-2022-46340

Public on 2022-12-14
Modified on 2024-01-12
Description

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.

Severity
Important
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CVSS v3 Base Score
8.8
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 xorg-x11-server 2023-02-17 00:02 ALAS-2023-1689
Amazon Linux 2 - Core xorg-x11-server 2023-03-02 22:35 ALAS2-2023-1982
Amazon Linux 2023 xorg-x11-server 2023-02-17 20:48 ALAS2023-2023-102

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H