CVE-2020-15678
8.8
HIGH
CVSS 3.1
EPSS 0.87%
Description
When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
How to fix CVE-2020-15678
To remediate CVE-2020-15678, upgrade the affected package to a fixed version below.
- —upgrade to 78.3.0esr-1 or later
- —upgrade to 1:78.3.1-1 or later
Is CVE-2020-15678 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 78.3.0esr-1
- from 0, < 1:78.3.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |