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
Link | Resource |
---|---|
https://github.com/Perl/perl5/commit/c1a937fef07c061600a0078f4cb53fe9c2136bb9 | Patch Third Party Advisory |
https://github.com/dankogai/p5-encode/commit/527e482dc70b035d0df4f8c77a00d81f8d775c74 | Patch Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NDGQSGMEZ75FJGBKNYC75OTO7TF7XHB/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6KOZYD7BH2DNIAEZ2ZL4PJ4QUVQI6Y33/ | |
https://metacpan.org/dist/Encode/changes | Third Party Advisory |
https://news.cpanel.com/unscheduled-tsr-10-august-2021/ | Third Party Advisory |
https://security-tracker.debian.org/tracker/CVE-2021-36770 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20210909-0003/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2021-08-11T22:49:04
Updated: 2021-09-09T08:06:14
Reserved: 2021-07-17T00:00:00
Link: CVE-2021-36770
JSON object: View
NVD Information
Status : Modified
Published: 2021-08-11T23:15:07.707
Modified: 2023-11-07T03:36:48.243
Link: CVE-2021-36770
JSON object: View
Redhat Information
No data.
CWE