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Use After Free Affecting thunderbird package, versions <1:52.5.0-1

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
7.44% (94th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18318609
  • published26 Jul 2026
  • disclosed11 Jun 2018
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Introduced: 11 Jun 2018

CVE-2017-7828  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:52.5.0-1 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.