Out-of-bounds Write Affecting thunderbird package, versions <1:78.6.0-1
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Test your applications- Snyk ID SNYK-DEBIAN12-THUNDERBIRD-1560703
- published 16 Dec 2020
- disclosed 7 Jan 2021
Introduced: 16 Dec 2020
CVE-2020-26974 Open this link in a new tabHow to fix?
Upgrade Debian:12 thunderbird to version 1:78.6.0-1 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.
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.