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Use After Free Affecting thunderbird package, versions <1:68.12.0-1

0.0
high

Snyk CVSS

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

    Threat Intelligence

    EPSS 0.26% (66th percentile)
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NVD
8.8 high
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Red Hat
8.8 high
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SUSE
8.8 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-THUNDERBIRD-608905
  • published 26 Aug 2020
  • disclosed 1 Oct 2020
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Introduced: 26 Aug 2020

CVE-2020-15669 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:unstable thunderbird to version 1:68.12.0-1 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 Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.