Use After Free Affecting firefox package, versions <0:91.4.0-1.0.1.el7_9
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Test your applications- Snyk ID SNYK-ORACLE7-FIREFOX-2596116
- published 10 Apr 2022
- disclosed 8 Dec 2021
Introduced: 8 Dec 2021
CVE-2021-43539 Open this link in a new tabHow to fix?
Upgrade Oracle:7 firefox to version 0:91.4.0-1.0.1.el7_9 or higher.
This issue was patched in ELSA-2021-5014.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
References
- https://linux.oracle.com/cve/CVE-2021-43539.html
- https://linux.oracle.com/errata/ELSA-2021-5013.html
- https://linux.oracle.com/errata/ELSA-2021-5014.html
- https://linux.oracle.com/errata/ELSA-2021-5045.html
- https://linux.oracle.com/errata/ELSA-2021-5046.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1739683
- https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
- https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14
- https://www.debian.org/security/2021/dsa-5026
- https://www.debian.org/security/2022/dsa-5034
- https://www.mozilla.org/security/advisories/mfsa2021-52/
- https://www.mozilla.org/security/advisories/mfsa2021-53/
- https://www.mozilla.org/security/advisories/mfsa2021-54/