Use After Free Affecting thunderbird-debuginfo package, versions <0:78.4.3-1.amzn2.0.1


Severity

Recommended
critical

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.35% (73rd percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRDDEBUGINFO-1692619
  • published27 Sept 2021
  • disclosed1 Oct 2020

Introduced: 1 Oct 2020

CVE-2020-15678  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird-debuginfo to version 0:78.4.3-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2020-1572.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird-debuginfo package and not the thunderbird-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1