CVE-2021-36770

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Summary

CVECVE-2021-36770
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-11 23:15:00 UTC
Updated2023-11-07 03:36:00 UTC
DescriptionEncode.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.

Risk And Classification

Problem Types: CWE-427

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 33 All All All
Operating System Fedoraproject Fedora 34 All All All
Application P5-encode Project P5-encode All All All All
Application Perl Perl All All All All

References

ReferenceSourceLinkTags
version 3.12 to address CVE-2021-36770 · dankogai/p5-encode@527e482 · GitHub CONFIRM github.com
Encode.pm: apply a local patch for CVE-2021-36770 · Perl/perl5@c1a937f · GitHub CONFIRM github.com
[SECURITY] Fedora 34 Update: perl-Encode-3.12-460.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Unscheduled TSR 10 August 2021 | cPanel Newsroom CONFIRM news.cpanel.com
[SECURITY] Fedora 33 Update: perl-Encode-3.08-459.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Changes - metacpan.org CONFIRM metacpan.org
CVE-2021-36770 MISC security-tracker.debian.org
[SECURITY] Fedora 34 Update: perl-Encode-3.12-460.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE-2021-36770 Perl Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
[SECURITY] Fedora 33 Update: perl-Encode-3.08-459.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180406 Debian Security Update for perllibencode-perl (CVE-2021-36770)
  • 198454 Ubuntu Security Notification for Perl vulnerability (USN-5033-1)
  • 281799 Fedora Security Update for perl (FEDORA-2021-92e07de1dd)
  • 281854 Fedora Security Update for perl (FEDORA-2021-44c65203cc)
  • 501990 Alpine Linux Security Update for perl-encode
  • 501991 Alpine Linux Security Update for perl
  • 504282 Alpine Linux Security Update for perl-encode
  • 504288 Alpine Linux Security Update for perl
  • 672138 EulerOS Security Update for perl-encode (EulerOS-SA-2022-2420)
  • 672142 EulerOS Security Update for perl-encode (EulerOS-SA-2022-2433)
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