NULL Pointer Dereference Affecting thunderbird package, versions <0:68.5.0-1.el7_7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.45% (76th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-4918062
  • published26 Jul 2021
  • disclosed11 Feb 2020

Introduced: 11 Feb 2020

CVE-2020-6795  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:68.5.0-1.el7_7 or higher.
This issue was patched in RHSA-2020:0576.

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.

When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.

CVSS Scores

version 3.1