CVE-2013-6424

medium

Published 2014-01-18 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.0

Description

Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.

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.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 3 releases

Version	Status	Fixed in
13.1	Affected	—
12.3	Affected	—
12.2	Affected	—

Ubuntu Affected 3 releases

Version	Status	Fixed in
14.10	Affected	—
14.04	Affected	—
12.04	Affected	—

Debian Mixed 7 releases

Version	Status	Fixed in
trixie	Fixed	`2:1.14.2.901-1`
sid	Fixed	`2:1.14.2.901-1`
forky	Fixed	`2:1.14.2.901-1`
bullseye	Fixed	`2:1.14.2.901-1`
bookworm	Fixed	`2:1.14.2.901-1`
7.0	Affected	—
6.0	Affected	—

Application impact

Vendor	Product	Versions	Fixed
pixman	pixman	`{"endExcluding":"0.31.2"}`	`0.31.2`

References

CWEs

CWE-191

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

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