Use After Free Affecting thunderbird package, versions <0:60.7.0-1.el7_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.69% (81st percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-4930349
  • published26 Jul 2021
  • disclosed22 May 2019

Introduced: 22 May 2019

CVE-2019-9820  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:60.7.0-1.el7_6 or higher.
This issue was patched in RHSA-2019:1309.

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 in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

CVSS Scores

version 3.1