Use After Free Affecting thunderbird package, versions <1:68.2.2-1~deb8u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.8% (83rd percentile)

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  • Snyk IDSNYK-DEBIAN8-THUNDERBIRD-474394
  • published22 Oct 2019
  • disclosed8 Jan 2020

Introduced: 22 Oct 2019

CVE-2019-11757  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:8 thunderbird to version 1:68.2.2-1~deb8u1 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 Debian. See How to fix? for Debian:8 relevant fixed versions and status.

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS Scores

version 3.1