Untrusted Search Path Affecting perl package, versions <5.32.1-4+deb11u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.09% (40th percentile)

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  • Snyk IDSNYK-DEBIAN11-PERL-1537850
  • 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 Debian:11 perl to version 5.32.1-4+deb11u1 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 Debian. See How to fix? for Debian:11 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