CVE-2020-26976 Affecting thunderbird package, versions <1:78.7.0-1
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Test your applications- Snyk ID SNYK-DEBIAN12-THUNDERBIRD-1561205
- published 16 Dec 2020
- disclosed 7 Jan 2021
Introduced: 16 Dec 2020
CVE-2020-26976 Open this link in a new tabHow to fix?
Upgrade Debian:12 thunderbird to version 1:78.7.0-1 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 a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.
References
- https://security-tracker.debian.org/tracker/CVE-2020-26976
- https://www.debian.org/security/2021/dsa-4840
- https://www.debian.org/security/2021/dsa-4842
- https://security.gentoo.org/glsa/202102-02
- https://bugzilla.mozilla.org/show_bug.cgi?id=1674343
- https://www.mozilla.org/security/advisories/mfsa2020-54/
- https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html