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
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
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
thunderbird edge-community 91.3.2-r0 None fixed
thunderbird edge-community 78.9.0-r0 None possibly vulnerable
thunderbird edge-community 78.7.0-r0 None possibly vulnerable
thunderbird edge-community 78.6.1-r0 None possibly vulnerable
thunderbird edge-community 78.5.1-r0 None possibly vulnerable
thunderbird edge-community 68.10.0-r0 None possibly vulnerable
thunderbird edge-community 68.9.0-r0 None possibly vulnerable
thunderbird edge-community 68.8.0-r0 None possibly vulnerable
thunderbird edge-community 68.7.0-r0 None possibly vulnerable
thunderbird edge-community 68.6.0-r0 None possibly vulnerable
thunderbird edge-community 68.5.0-r0 None possibly vulnerable
thunderbird 3.22-community 91.3.2-r0 None fixed
thunderbird 3.22-community 78.9.0-r0 None possibly vulnerable
thunderbird 3.22-community 78.7.0-r0 None possibly vulnerable
thunderbird 3.22-community 78.6.1-r0 None possibly vulnerable
thunderbird 3.22-community 78.5.1-r0 None possibly vulnerable
thunderbird 3.22-community 68.10.0-r0 None possibly vulnerable
thunderbird 3.22-community 68.9.0-r0 None possibly vulnerable
thunderbird 3.22-community 68.8.0-r0 None possibly vulnerable
thunderbird 3.22-community 68.7.0-r0 None possibly vulnerable
thunderbird 3.22-community 68.6.0-r0 None possibly vulnerable
thunderbird 3.22-community 68.5.0-r0 None possibly vulnerable
thunderbird 3.21-community 91.3.2-r0 None fixed
thunderbird 3.20-community 91.3.2-r0 None fixed
thunderbird 3.19-community 91.3.2-r0 None fixed
thunderbird 3.18-community 91.3.2-r0 None fixed
thunderbird 3.17-community 91.3.2-r0 None fixed
librewolf edge-community 88.0-r0 None fixed
librewolf 3.22-community 88.0-r0 None fixed
librewolf 3.21-community 88.0-r0 None fixed
firefox-esr edge-community 78.10.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
firefox-esr 3.22-community 78.10.0-r0 None fixed
firefox-esr 3.21-community 78.10.0-r0 None fixed
firefox-esr 3.20-community 78.10.0-r0 None fixed
firefox-esr 3.19-community 78.10.0-r0 None fixed
firefox-esr 3.18-community 78.10.0-r0 None fixed
firefox-esr 3.17-community 78.10.0-r0 None fixed
firefox edge-community 88.0-r0 Rasmus Thomsen <oss@cogitri.dev> fixed
firefox edge-community 87.0-r0 None fixed
firefox edge-community 85.0-r0 None fixed
firefox edge-community 84.0.2-r0 None fixed
firefox edge-community 84.0.1-r0 None fixed
firefox edge-community 83.0-r0 None fixed
firefox edge-community 82.0.3-r0 None fixed
firefox edge-community 82.0-r0 None fixed
firefox edge-community 81.0-r0 None fixed
firefox edge-community 80.0-r0 None fixed
firefox edge-community 79.0-r0 None fixed
firefox edge-community 78.0-r0 None possibly vulnerable
firefox edge-community 77.0-r0 None possibly vulnerable
firefox edge-community 76.0-r0 None possibly vulnerable
firefox edge-community 75.0-r0 None possibly vulnerable
firefox edge-community 74.0.1-r0 None possibly vulnerable
firefox edge-community 74.0-r0 None possibly vulnerable
firefox edge-community 71.0.1-r0 None possibly vulnerable
firefox edge-community 70.0-r0 None possibly vulnerable
firefox edge-community 68.0.2-r0 None possibly vulnerable
firefox 3.22-community 88.0-r0 None fixed
firefox 3.22-community 87.0-r0 None fixed
firefox 3.22-community 85.0-r0 None fixed
firefox 3.22-community 84.0.2-r0 None fixed
firefox 3.22-community 84.0.1-r0 None fixed
firefox 3.22-community 83.0-r0 None fixed
firefox 3.22-community 82.0.3-r0 None fixed
firefox 3.22-community 82.0-r0 None fixed
firefox 3.22-community 81.0-r0 None fixed
firefox 3.22-community 80.0-r0 None fixed
firefox 3.22-community 79.0-r0 None fixed
firefox 3.22-community 78.0-r0 None possibly vulnerable
firefox 3.22-community 77.0-r0 None possibly vulnerable
firefox 3.22-community 76.0-r0 None possibly vulnerable
firefox 3.22-community 75.0-r0 None possibly vulnerable
firefox 3.22-community 74.0.1-r0 None possibly vulnerable
firefox 3.22-community 74.0-r0 None possibly vulnerable
firefox 3.22-community 71.0.1-r0 None possibly vulnerable
firefox 3.22-community 70.0-r0 None possibly vulnerable
firefox 3.22-community 68.0.2-r0 None possibly vulnerable
firefox 3.21-community 88.0-r0 None fixed
firefox 3.20-community 88.0-r0 None fixed
firefox 3.19-community 88.0-r0 None fixed
firefox 3.18-community 88.0-r0 None fixed
firefox 3.17-community 88.0-r0 None fixed