MitreCVELIST:CVE-2021-36770CVE-2021-36770
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.
References
github.com/dankogai/p5-encode/commit/527e482dc70b035d0df4f8c77a00d81f8d775c74
github.com/Perl/perl5/commit/c1a937fef07c061600a0078f4cb53fe9c2136bb9
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NDGQSGMEZ75FJGBKNYC75OTO7TF7XHB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6KOZYD7BH2DNIAEZ2ZL4PJ4QUVQI6Y33/
metacpan.org/dist/Encode/changes
news.cpanel.com/unscheduled-tsr-10-august-2021/
security-tracker.debian.org/tracker/CVE-2021-36770
security.netapp.com/advisory/ntap-20210909-0003/
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