Use After Free Affecting firefox package, versions <0:52.2.0-1.el7_3
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-RHEL7-FIREFOX-5192943
- published26 Jul 2021
- disclosed14 Jun 2017
Introduced: 14 Jun 2017
CVE-2017-7749 (opens in a new tab)How to fix?
Upgrade RHEL:7 firefox to version 0:52.2.0-1.el7_3 or higher.
This issue was patched in RHSA-2017:1440.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
A use-after-free vulnerability when using an incorrect URL during the reloading of a docshell. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
References
- http://www.securityfocus.com/bid/99057
- https://bugzilla.mozilla.org/show_bug.cgi?id=1355039
- https://www.mozilla.org/security/advisories/mfsa2017-15/
- https://www.mozilla.org/security/advisories/mfsa2017-16/
- https://www.mozilla.org/security/advisories/mfsa2017-17/
- https://access.redhat.com/security/cve/CVE-2017-7749
- https://www.debian.org/security/2017/dsa-3881
- https://www.debian.org/security/2017/dsa-3918
- https://access.redhat.com/errata/RHSA-2017:1440
- http://www.securitytracker.com/id/1038689