CVE-2025-40909

Name
CVE-2025-40909
Description
Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
related https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1098226
related https://github.com/Perl/perl5/commit/11a11ecf4bea72b17d250cfb43c897be1341861e
patch https://github.com/Perl/perl5/commit/918bfff86ca8d6d4e4ec5b30994451e0bd74aba9.patch
related https://github.com/Perl/perl5/issues/10387
issue-tracking https://github.com/Perl/perl5/issues/23010
related https://perldoc.perl.org/5.14.0/perl5136delta#Directory-handles-not-copied-to-threads
mailing-list https://www.openwall.com/lists/oss-security/2025/05/22/2
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/05/23/1
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/05/30/4
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/06/02/2
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/06/02/5
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/06/02/6
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/06/02/7
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/06/03/1
af854a3a-2127-422b-91ae-364da2661108 http://seclists.org/fulldisclosure/2025/Sep/53
af854a3a-2127-422b-91ae-364da2661108 http://seclists.org/fulldisclosure/2025/Sep/54
af854a3a-2127-422b-91ae-364da2661108 http://seclists.org/fulldisclosure/2025/Sep/55

Match rules

CPE URI Source package Min version Max version
perl >= 5.13.6 < 5.41.13

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
perl edge-main 5.40.2-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
perl edge-main 5.40.1-r1 Celeste <cielesti@protonmail.com> possibly vulnerable
perl edge-main 5.40.1-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
perl edge-main 5.40.0-r3 Celeste <cielesti@protonmail.com> possibly vulnerable
perl edge-main 5.38.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl edge-main 5.34.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl edge-main 5.30.3-r0 None possibly vulnerable
perl edge-main 5.26.3-r0 None possibly vulnerable
perl edge-main 5.26.2-r1 None possibly vulnerable
perl edge-main 5.26.2-r0 None possibly vulnerable
perl edge-main 5.26.1-r0 None possibly vulnerable
perl 3.22-main 5.40.3-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
perl 3.22-main 5.40.2-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
perl 3.22-main 5.40.1-r1 None possibly vulnerable
perl 3.22-main 5.38.1-r0 None possibly vulnerable
perl 3.22-main 5.34.0-r1 None possibly vulnerable
perl 3.22-main 5.30.3-r0 None possibly vulnerable
perl 3.22-main 5.26.3-r0 None possibly vulnerable
perl 3.22-main 5.26.2-r1 None possibly vulnerable
perl 3.22-main 5.26.2-r0 None possibly vulnerable
perl 3.22-main 5.26.1-r0 None possibly vulnerable
perl 3.21-main 5.40.3-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
perl 3.21-main 5.40.1-r1 Celeste <cielesti@protonmail.com> possibly vulnerable
perl 3.21-main 5.40.1-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
perl 3.21-main 5.40.0-r3 Celeste <cielesti@protonmail.com> possibly vulnerable
perl 3.21-main 5.38.1-r0 None possibly vulnerable
perl 3.21-main 5.34.0-r1 None possibly vulnerable
perl 3.21-main 5.30.3-r0 None possibly vulnerable
perl 3.21-main 5.26.3-r0 None possibly vulnerable
perl 3.21-main 5.26.2-r1 None possibly vulnerable
perl 3.21-main 5.26.2-r0 None possibly vulnerable
perl 3.21-main 5.26.1-r0 None possibly vulnerable
perl 3.20-main 5.38.5-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.20-main 5.38.3-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.20-main 5.38.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.20-main 5.38.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.20-main 5.38.1-r0 None possibly vulnerable
perl 3.20-main 5.34.0-r1 None possibly vulnerable
perl 3.20-main 5.30.3-r0 None possibly vulnerable
perl 3.20-main 5.26.3-r0 None possibly vulnerable
perl 3.20-main 5.26.2-r1 None possibly vulnerable
perl 3.20-main 5.26.2-r0 None possibly vulnerable
perl 3.20-main 5.26.1-r0 None possibly vulnerable
perl 3.19-main 5.38.5-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.19-main 5.38.3-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.19-main 5.38.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.19-main 5.38.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
perl 3.19-main 5.38.1-r0 None possibly vulnerable
perl 3.19-main 5.34.0-r1 None possibly vulnerable
perl 3.19-main 5.30.3-r0 None possibly vulnerable
perl 3.19-main 5.26.3-r0 None possibly vulnerable
perl 3.19-main 5.26.2-r1 None possibly vulnerable
perl 3.19-main 5.26.2-r0 None possibly vulnerable
perl 3.19-main 5.26.1-r0 None possibly vulnerable