CVE-2020-6821

Name
CVE-2020-6821
Description
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
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
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-13/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-14/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-12/
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1625404
Third Party Advisory https://usn.ubuntu.com/4335-1/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* firefox >= None < 75.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* firefox_esr >= None < 68.7.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* thunderbird >= None < 68.7.0

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 75.0-r0 None fixed
librewolf 3.22-community 75.0-r0 None fixed
librewolf 3.21-community 75.0-r0 None fixed
firefox-esr edge-community 68.7.0-r0 None fixed
firefox-esr 3.22-community 68.7.0-r0 None fixed
firefox-esr 3.21-community 68.7.0-r0 None fixed
firefox-esr 3.20-community 68.7.0-r0 None fixed
firefox-esr 3.19-community 68.7.0-r0 None fixed
firefox-esr 3.18-community 68.7.0-r0 None fixed
firefox-esr 3.17-community 68.7.0-r0 None fixed
firefox edge-community 75.0-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 75.0-r0 None fixed
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 75.0-r0 None fixed
firefox 3.20-community 75.0-r0 None fixed
firefox 3.19-community 75.0-r0 None fixed
firefox 3.18-community 75.0-r0 None fixed
firefox 3.17-community 75.0-r0 None fixed