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
0.5% (78th percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRDDEBUGINFO-1692503
  • published27 Sept 2021
  • disclosed1 Oct 2020

Introduced: 1 Oct 2020

CVE-2020-15673  (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.

Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

CVSS Scores

version 3.1