Uncontrolled Search Path Element Affecting thunderbird package, versions <1:78.11.0+build1-0ubuntu0.20.04.2


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-1253561
  • published6 May 2021
  • disclosed24 Jun 2021

Introduced: 6 May 2021

CVE-2021-29949  (opens in a new tab)
CWE-427  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Ubuntu:20.04 thunderbird to version 1:78.11.0+build1-0ubuntu0.20.04.2 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 Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird. If a computer has already been infected with a malicious library of the alternative filename, and the malicious library has been copied to a directory that is contained in the search path for executable libraries, then Thunderbird will load the incorrect library. This vulnerability affects Thunderbird < 78.9.1.

CVSS Scores

version 3.1