CVE-2018-12361

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

An integer overflow can occur in the SwizzleData code while calculating buffer sizes. The overflowed value is used for subsequent graphics computations when their inputs are not sanitized which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-12361

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-12361.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201806-14

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201808-8

OS impact

OSVersionStatusFixed in
arch archfixed60.0-1
suse slesaffected
debian debiansidfixed61.0-1
debian debianbookwormfixed1:60.0-1
debian debianbullseyefixed1:60.0-1
debian debianforkyfixed1:60.0-1
debian debiantrixiefixed1:60.0-1

References

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