CVE-2021-29984 Affecting thunderbird package, versions <1:78.13.0-1~deb10u1


0.0
high

Snyk CVSS

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

    Threat Intelligence

    EPSS 1.15% (85th percentile)
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NVD
8.8 high
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Red Hat
8.8 high
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SUSE
7.5 high

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  • Snyk ID SNYK-DEBIAN10-THUNDERBIRD-1540534
  • published 11 Aug 2021
  • disclosed 17 Aug 2021

How to fix?

Upgrade Debian:10 thunderbird to version 1:78.13.0-1~deb10u1 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:10 relevant fixed versions and status.

Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.