CVE-2013-4396

medium

Published 2013-10-10 · 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

6.5

Description

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

Predictions

Exploit likelihood

20%

Patch ETA

—

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

OS	Version	Status	Fixed in
debian	bookworm	fixed	`2:1.14.3-4`
debian	bullseye	fixed	`2:1.14.3-4`
debian	forky	fixed	`2:1.14.3-4`
debian	sid	fixed	`2:1.14.3-4`
debian	trixie	fixed	`2:1.14.3-4`

Application impact

Vendor	Product	Versions
x	x.org_x11	`6.0`
x	x.org_x11	`6.1`
x	x.org_x11	`6.3`
x	x.org_x11	`6.4`
x	x.org_x11	`6.5.1`
x	x.org_x11	`6.6`
x	x.org_x11	`6.7`
x	x.org_x11	`6.8`
x	x.org_x11	`6.8.1`
x	x.org_x11	`6.8.2`
x	x.org_x11	`6.9.0`
x	x.org_x11	`7.0`
x	x.org_x11	`7.1`
x	x.org_x11	`7.2`
x	x.org_x11	`7.3`
x	x.org_x11	`7.4`
x	x.org_x11	`7.5`
x	x.org_x11	`7.6`
x	x.org_x11	`7.7`

References

CWEs

CWE-399

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

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