CVE-2020-26976
First published: Tue Dec 15 2020(Updated: )
When a HTTPS page 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.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Thunderbird | <78.7 | 78.7 |
| <84 | 84 | |
| <78.7 | 78.7 | |
| <78.7 | 78.7 | |
| Mozilla Firefox | <84.0 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 | |
| debian/thunderbird | 1:91.12.0-1~deb10u1 1:115.3.1-1~deb10u1 1:102.13.1-1~deb11u1 1:115.3.1-1~deb11u1 1:102.15.1-1~deb12u1 1:115.3.1-1~deb12u1 1:115.3.1-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1674343
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-05/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-04/
- https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html
- https://security.gentoo.org/glsa/202102-02
- https://www.debian.org/security/2021/dsa-4840
- https://www.debian.org/security/2021/dsa-4842
- https://www.mozilla.org/security/advisories/mfsa2020-54/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-04/#CVE-2020-26976
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/#CVE-2020-26976
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-05/#CVE-2020-26976
- https://security-tracker.debian.org/tracker/CVE-2020-26976
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- collector/mozilla-advisory
- collector/security-tracker-debian
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- source/Mozilla
- agent/software-canonical-lookup
- agent/references
- agent/severity
- agent/author
- agent/description
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- agent/tags
- agent/last-modified-date
- agent/event
- agent/trending
- vendor/mozilla
- canonical/mozilla thunderbird
- package-manager/debian
- canonical/mozilla firefox esr
- canonical/mozilla firefox
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0