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Use After Free Affecting thunderbird package, versions <0:60.5.0-1.el6_10

Severity

 Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
22.56% (97th percentile)

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  • Snyk IDSNYK-CENTOS6-THUNDERBIRD-2153840
  • published26 Jul 2021
  • disclosed29 Jan 2019
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Introduced: 29 Jan 2019

CVE-2018-18500  (opens in a new tab)
CWE-416  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:6 thunderbird to version 0:60.5.0-1.el6_10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.