CVE-2020-6819

Name
CVE-2020-6819
Description
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
NVD Severity
unknown
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
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-14/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-11/
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1620818
Third Party Advisory https://usn.ubuntu.com/4335-1/
134c704f-9b21-4f2e-91b3-4a467353bcc0 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-6819

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* firefox >= None < 74.0.1
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* firefox_esr >= None < 68.6.1
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* thunderbird >= None < 68.7.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* firefox >= None < 68.6.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
thunderbird edge-community 68.7.0-r0 None fixed
thunderbird edge-community 68.6.0-r0 None possibly vulnerable
thunderbird edge-community 68.5.0-r0 None possibly vulnerable
thunderbird 3.22-community 68.7.0-r0 None fixed
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 68.7.0-r0 None fixed
thunderbird 3.20-community 68.7.0-r0 None fixed
thunderbird 3.19-community 68.7.0-r0 None fixed
thunderbird 3.18-community 68.7.0-r0 None fixed
thunderbird 3.17-community 68.7.0-r0 None fixed
librewolf edge-community 74.0.1-r0 None fixed
librewolf 3.22-community 74.0.1-r0 None fixed
librewolf 3.21-community 74.0.1-r0 None fixed
firefox-esr edge-community 68.6.1-r0 None fixed
firefox-esr 3.22-community 68.6.1-r0 None fixed
firefox-esr 3.21-community 68.6.1-r0 None fixed
firefox-esr 3.20-community 68.6.1-r0 None fixed
firefox-esr 3.19-community 68.6.1-r0 None fixed
firefox-esr 3.18-community 68.6.1-r0 None fixed
firefox-esr 3.17-community 68.6.1-r0 None fixed
firefox edge-community 74.0.1-r0 None fixed
firefox edge-community 74.0-r0 None fixed
firefox edge-community 71.0.1-r0 None fixed
firefox edge-community 70.0-r0 None fixed
firefox edge-community 68.0.2-r0 None possibly vulnerable
firefox 3.22-community 74.0.1-r0 None fixed
firefox 3.22-community 74.0-r0 None fixed
firefox 3.22-community 71.0.1-r0 None fixed
firefox 3.22-community 70.0-r0 None fixed
firefox 3.22-community 68.0.2-r0 None possibly vulnerable
firefox 3.21-community 74.0.1-r0 None fixed
firefox 3.20-community 74.0.1-r0 None fixed
firefox 3.19-community 74.0.1-r0 None fixed
firefox 3.18-community 74.0.1-r0 None fixed
firefox 3.17-community 74.0.1-r0 None fixed