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MFSA2020-53 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.5.1 (CVE-2020-26970)

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MFSA2020-53 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.5.1 (CVE-2020-26970)

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
12/01/2020
Created
12/03/2020
Added
12/02/2020
Modified
12/14/2020

Description

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.

Solution(s)

  • mozilla-thunderbird-upgrade-78_5_1

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