CVE-2018-5159

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

Description

An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

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-2018-5159

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201805-10

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201805-21

OS impact

OSVersionStatusFixed in
arch archfixed52.8.0-1
debian debiansidfixed60.0-1
debian debianbookwormfixed52.8.0esr-1
debian debianbullseyefixed52.8.0esr-1
debian debianforkyfixed52.8.0esr-1
debian debiantrixiefixed52.8.0esr-1

References

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