Use After Free Affecting thunderbird package, versions <0:78.13.0-1.el7_9


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.27% (87th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-8015200
  • published17 Sept 2024
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-29984  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:78.13.0-1.el7_9 or higher.
This issue was patched in RHSA-2021:3160.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by RHEL. See How to fix? for RHEL:7 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.

CVSS Scores

version 3.1