Improper Privilege Management The advisory has been revoked - it doesn't affect any version of package thunderbird (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-2314207
- published10 Dec 2021
- disclosed8 Dec 2021
Introduced: 8 Dec 2021
CVE-2021-43528 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu.
Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-43528
- https://bugzilla.mozilla.org/show_bug.cgi?id=1742579
- https://www.mozilla.org/security/advisories/mfsa2021-54/
- https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
- https://security.gentoo.org/glsa/202208-14
- https://www.debian.org/security/2022/dsa-5034