Buffer Overflow Affecting thunderbird package, versions <0:91.4.0-3.el7_9


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-2315426
  • published8 Dec 2021
  • disclosed7 Dec 2021

Introduced: 7 Dec 2021

CVE-2021-43537  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:91.4.0-3.el7_9 or higher.
This issue was patched in RHSA-2021:5046.

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.

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CVSS Scores

version 3.1