CVE-2021-23995

Name
CVE-2021-23995
Description
When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
NVD Severity
high
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://www.mozilla.org/security/advisories/mfsa2021-15/
MISC https://www.mozilla.org/security/advisories/mfsa2021-16/
MISC https://www.mozilla.org/security/advisories/mfsa2021-14/
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1699835

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* firefox >= None < 88.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* firefox_esr >= None < 78.10
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* thunderbird >= None < 78.10

Vulnerable and fixed packages

Source package Branch Version Maintainer Status