Untrusted Search Path Affecting perl package, versions <5.32.1-3ubuntu3


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.09% (40th percentile)

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  • Snyk IDSNYK-UBUNTU2204-PERL-2781652
  • published10 Aug 2021
  • disclosed11 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-36770  (opens in a new tab)
CWE-426  (opens in a new tab)

How to fix?

Upgrade Ubuntu:22.04 perl to version 5.32.1-3ubuntu3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.

CVSS Scores

version 3.1