CVE-2018-18493
CRITICAL9.8EPSS 18.2%Published: 2/28/2019Modified: 4/28/2026
Also known as:DEBIAN-CVE-2018-18493
Description
A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
Affected packages (2)
- Debian/firefox-esrfrom 0, < 60.4.0esr-1
- Debian/thunderbirdfrom 0, < 1:60.4.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |