Out-of-bounds Write Affecting thunderbird package, versions <1:78.5.1-1
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Test your applications- Snyk ID SNYK-DEBIAN12-THUNDERBIRD-1561183
- published 2 Dec 2020
- disclosed 9 Dec 2020
Introduced: 2 Dec 2020
CVE-2020-26970 Open this link in a new tabHow to fix?
Upgrade Debian:12 thunderbird to version 1:78.5.1-1 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 reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.