Out-of-Bounds Affecting thunderbird package, versions <1:68.7.0-1
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Test your applications- Snyk ID SNYK-DEBIAN12-THUNDERBIRD-1560914
- published 7 Apr 2020
- disclosed 24 Apr 2020
Introduced: 7 Apr 2020
CVE-2020-6821 Open this link in a new tabHow to fix?
Upgrade Debian:12 thunderbird to version 1:68.7.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2020-6821
- https://www.mozilla.org/security/advisories/mfsa2020-12/
- https://www.mozilla.org/security/advisories/mfsa2020-13/
- https://www.mozilla.org/security/advisories/mfsa2020-14/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1625404
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-6821
- https://usn.ubuntu.com/4335-1/