CVE-2018-18498
9.8
CRITICAL
CVSS 3.1
EPSS 4.1%
Description
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
How to fix CVE-2018-18498
To remediate CVE-2018-18498, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 60.4.0esr-1 or later
- —upgrade to 1:60.4.0-1 or later
Is CVE-2018-18498 being exploited?
Low — EPSS is 4.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 60.4.0esr-1
- from 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 |