Use After Free Affecting webkit2gtk3-jsc package, versions <0:2.32.3-2.el8
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Test your applications- Snyk ID SNYK-ORACLE8-WEBKIT2GTK3JSC-2594043
- published 10 Apr 2022
- disclosed 8 Jul 2021
Introduced: 8 Jul 2021
CVE-2021-21779 Open this link in a new tabHow to fix?
Upgrade Oracle:8 webkit2gtk3-jsc to version 0:2.32.3-2.el8 or higher.
This issue was patched in ELSA-2021-4381.
NVD Description
Note: Versions mentioned in the description apply only to the upstream webkit2gtk3-jsc package and not the webkit2gtk3-jsc package as distributed by Oracle.
See How to fix? for Oracle:8 relevant fixed versions and status.
A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.
References
- https://linux.oracle.com/cve/CVE-2021-21779.html
- https://linux.oracle.com/errata/ELSA-2021-4381.html
- http://www.openwall.com/lists/oss-security/2021/07/23/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238
- https://www.debian.org/security/2021/dsa-4945
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/