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LIN1021-1112 : Security Advisory - perl - CVE-2021-36770

Created: Aug 9, 2021    Updated: Sep 25, 2021
Resolved Date: Sep 17, 2021
Found In Version: 10.21.20.1
Fix Version: 10.21.20.5
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace

Description

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.

https://nvd.nist.gov/vuln/detail/CVE-2021-36770

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