CVE-2021-38506

Name
CVE-2021-38506
Description
Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
NVD Severity
medium
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/mfsa2021-50/
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1730750
MISC https://www.mozilla.org/security/advisories/mfsa2021-49/
MISC https://www.mozilla.org/security/advisories/mfsa2021-48/
Third Party Advisory https://www.debian.org/security/2021/dsa-5026
MLIST https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
DEBIAN https://www.debian.org/security/2022/dsa-5034
MLIST https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
Third Party Advisory https://security.gentoo.org/glsa/202202-03

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* firefox >= None < 94.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* firefox_esr >= None < 91.3.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* thunderbird >= None < 91.3.0

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 94.0-r0 None fixed
librewolf 3.22-community 94.0-r0 None fixed
librewolf 3.21-community 94.0-r0 None fixed
firefox-esr edge-community 91.3.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
firefox-esr 3.22-community 91.3.0-r0 None fixed
firefox-esr 3.21-community 91.3.0-r0 None fixed
firefox-esr 3.20-community 91.3.0-r0 None fixed
firefox-esr 3.19-community 91.3.0-r0 None fixed
firefox-esr 3.18-community 91.3.0-r0 None fixed
firefox-esr 3.17-community 91.3.0-r0 None fixed
firefox edge-community 94.0-r0 Rasmus Thomsen <oss@cogitri.dev> fixed
firefox edge-community 93.0-r0 Rasmus Thomsen <oss@cogitri.dev> fixed
firefox edge-community 92.0.1-r0 Rasmus Thomsen <oss@cogitri.dev> fixed
firefox edge-community 90.0.2-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 90.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 89.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 88.0.1-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 88.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 87.0-r0 None possibly vulnerable
firefox edge-community 85.0-r0 None possibly vulnerable
firefox edge-community 84.0.2-r0 None possibly vulnerable
firefox edge-community 84.0.1-r0 None possibly vulnerable
firefox edge-community 83.0-r0 None possibly vulnerable
firefox edge-community 82.0.3-r0 None possibly vulnerable
firefox edge-community 82.0-r0 None possibly vulnerable
firefox edge-community 81.0-r0 None possibly vulnerable
firefox edge-community 80.0-r0 None possibly vulnerable
firefox edge-community 79.0-r0 None possibly vulnerable
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 94.0-r0 None fixed
firefox 3.22-community 93.0-r0 None fixed
firefox 3.22-community 92.0.1-r0 None fixed
firefox 3.22-community 90.0-r0 None possibly vulnerable
firefox 3.22-community 89.0-r0 None possibly vulnerable
firefox 3.22-community 88.0.1-r0 None possibly vulnerable
firefox 3.22-community 88.0-r0 None possibly vulnerable
firefox 3.22-community 87.0-r0 None possibly vulnerable
firefox 3.22-community 85.0-r0 None possibly vulnerable
firefox 3.22-community 84.0.2-r0 None possibly vulnerable
firefox 3.22-community 84.0.1-r0 None possibly vulnerable
firefox 3.22-community 83.0-r0 None possibly vulnerable
firefox 3.22-community 82.0.3-r0 None possibly vulnerable
firefox 3.22-community 82.0-r0 None possibly vulnerable
firefox 3.22-community 81.0-r0 None possibly vulnerable
firefox 3.22-community 80.0-r0 None possibly vulnerable
firefox 3.22-community 79.0-r0 None possibly vulnerable
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 94.0-r0 None fixed
firefox 3.20-community 94.0-r0 None fixed
firefox 3.19-community 94.0-r0 None fixed
firefox 3.18-community 94.0-r0 None fixed
firefox 3.17-community 94.0-r0 None fixed