Rapid7 Vulnerability & Exploit Database

MFSA2021-08 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.8 (CVE-2021-23978)

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MFSA2021-08 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.8 (CVE-2021-23978)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
02/23/2021
Created
02/25/2021
Added
02/24/2021
Modified
03/08/2021

Description

Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Solution(s)

  • mozilla-firefox-esr-upgrade-78_8

References

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