Use After Free Affecting thunderbird package, versions <1:68.2.1-1


0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.81% (82nd percentile)
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NVD
8.8 high
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SUSE
8.8 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-THUNDERBIRD-474386
  • published 22 Oct 2019
  • disclosed 8 Jan 2020

How to fix?

Upgrade Debian:unstable thunderbird to version 1:68.2.1-1 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 Debian. See How to fix? for Debian:unstable 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.