CVE-2022-46340

medium

Published 2023-05-09 · Modified 2023-05-16

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.5

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

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OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

AlmaLinux Fixed 1 release

Version	Status	Fixed in
9	Fixed	`tigervnc-server-1.12.0-13.el9_2.aarch64.rpm`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2:21.1.5-1`
sid	Fixed	`2:21.1.5-1`
forky	Fixed	`2:21.1.5-1`
bullseye	Fixed	`2:1.20.11-1+deb11u4`
bookworm	Fixed	`2:21.1.5-1`

Red Hat Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.