Use After Free Affecting thunderbird package, versions <1:78.4.2-1
Threat Intelligence
EPSS
91.58% (100th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN12-THUNDERBIRD-1561378
- published 10 Nov 2020
- disclosed 9 Dec 2020
Introduced: 10 Nov 2020
CVE-2020-26950 Open this link in a new tabHow to fix?
Upgrade Debian:12 thunderbird to version 1:78.4.2-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.
CVSS Scores
version 3.1