Use After Free Affecting firefox package, versions <0:52.3.0-2.el7_4
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-1473249
- published26 Jul 2021
- disclosed8 Aug 2017
Introduced: 8 Aug 2017
CVE-2017-7800 (opens in a new tab)How to fix?
Upgrade RHEL:7 firefox to version 0:52.3.0-2.el7_4 or higher.
This issue was patched in RHSA-2017:2456.
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 can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
References
- http://www.securityfocus.com/bid/100196
- https://bugzilla.mozilla.org/show_bug.cgi?id=1374047
- https://www.mozilla.org/security/advisories/mfsa2017-18/
- https://www.mozilla.org/security/advisories/mfsa2017-19/
- https://www.mozilla.org/security/advisories/mfsa2017-20/
- https://access.redhat.com/security/cve/CVE-2017-7800
- https://www.debian.org/security/2017/dsa-3928
- https://www.debian.org/security/2017/dsa-3968
- https://security.gentoo.org/glsa/201803-14
- https://access.redhat.com/errata/RHSA-2017:2456
- http://www.securitytracker.com/id/1039124