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MFSA2020-36 Firefox: Security Vulnerabilities fixed in Firefox 80 (CVE-2020-15667)

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MFSA2020-36 Firefox: Security Vulnerabilities fixed in Firefox 80 (CVE-2020-15667)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
08/25/2020
Created
08/27/2020
Added
08/26/2020
Modified
10/13/2020

Description

When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption and potentially arbitrary code execution. Within Firefox as released by Mozilla, this issue is only exploitable with the Mozilla-controlled signing key. This vulnerability affects Firefox < 80.

Solution(s)

  • mozilla-firefox-upgrade-80_0

References

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