Use After Free Affecting firefox package, versions <0:78.4.1-1.0.1.el7_9
Threat Intelligence
EPSS
91.58% (99th
percentile)
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Test your applications- Snyk ID SNYK-ORACLE7-FIREFOX-2574772
- published 10 Apr 2022
- disclosed 9 Dec 2020
Introduced: 9 Dec 2020
CVE-2020-26950 Open this link in a new tabHow to fix?
Upgrade Oracle:7 firefox to version 0:78.4.1-1.0.1.el7_9 or higher.
This issue was patched in ELSA-2020-5099.
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.
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.
References
- https://linux.oracle.com/cve/CVE-2020-26950.html
- https://linux.oracle.com/errata/ELSA-2020-5099.html
- https://linux.oracle.com/errata/ELSA-2020-5100.html
- https://linux.oracle.com/errata/ELSA-2020-5104.html
- https://linux.oracle.com/errata/ELSA-2020-5146.html
- https://linux.oracle.com/errata/ELSA-2020-5163.html
- https://linux.oracle.com/errata/ELSA-2020-5164.html
- http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
- https://www.mozilla.org/security/advisories/mfsa2020-49/
CVSS Scores
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