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Use After Free Affecting thunderbird package, versions <0:52.3.0-1.el7_4

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.71% (85th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-5204635
  • published26 Jul 2021
  • disclosed8 Aug 2017
Report a new vulnerability Found a mistake?

Introduced: 8 Aug 2017

CVE-2017-7802  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:52.3.0-1.el7_4 or higher.
This issue was patched in RHSA-2017:2534.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

A use-after-free vulnerability can occur when manipulating the DOM during the resize event of an image element. If these elements have been freed due to a lack of strong references, a potentially exploitable crash may occur when the freed elements are accessed. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.