Mageia 7: MGASA-2020-0450 Critical: Thunderbird Stack Corruption Issue
mageia
December 5, 2020
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
Summary
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 (CVE-2020-26970).
References
- https://bugs.mageia.org/show_bug.cgi?id=27707
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-53/
- https://www.thunderbird.net/en-US/thunderbird/78.5.1/releasenotes/
- https://www.cve.org/CVERecord?id=CVE-2020-26970
Topics Covered
Resolution
SRPMS
- 7/core/thunderbird-78.5.1-1.mga7
- 7/core/thunderbird-l10n-78.5.1-1.mga7
- 7/core/rootcerts-20201201.00-1.mga7
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Severity
critical
Lowest
Low
Medium
High
Critical
Publication date: 05 Dec 2020
URL: https://advisories.mageia.org/MGASA-2020-0450.html
Type: security
CVE: CVE-2020-26970
Topics Covered
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