CVE-2016-5384

high

Published 2016-08-13 · Modified 2026-05-06

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CVSS v3

7.8

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.8

Description

fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary code via a crafted cache file.

Predictions

Exploit likelihood

75%

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
sles		affected
debian	bookworm	fixed	`2.11.0-6.5`
debian	bullseye	fixed	`2.11.0-6.5`
debian	forky	fixed	`2.11.0-6.5`
debian	sid	fixed	`2.11.0-6.5`
debian	trixie	fixed	`2.11.0-6.5`
debian	8.0	affected
fedora	23	affected
fedora	24	affected
ubuntu	12.04	affected
ubuntu	14.04	affected
ubuntu	16.04	affected

Application impact

Vendor	Product	Versions	Fixed
fontconfig_project	fontconfig	`{"endExcluding":"2.12.1"}`	`2.12.1`

References

CWEs

CWE-415

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

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