Incorrect Calculation The advisory has been revoked - it doesn't affect any version of package thunderbird (opens in a new tab)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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Test your applications- Snyk IDSNYK-CENTOS9-THUNDERBIRD-2879132
- published25 Jan 2022
- disclosed17 Jan 2022
Introduced: 17 Jan 2022
CVE-2021-45960 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Centos.
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
References
- https://access.redhat.com/security/cve/CVE-2021-45960
- https://access.redhat.com/errata/RHSA-2022:0951
- https://access.redhat.com/errata/RHSA-2022:1069
- http://www.openwall.com/lists/oss-security/2022/01/17/3
- https://bugzilla.mozilla.org/show_bug.cgi?id=1217609
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://github.com/libexpat/libexpat/issues/531
- https://github.com/libexpat/libexpat/pull/534
- https://security.gentoo.org/glsa/202209-24
- https://security.netapp.com/advisory/ntap-20220121-0004/
- https://www.debian.org/security/2022/dsa-5073
- https://www.tenable.com/security/tns-2022-05