CVE-2025-40909 Affecting perl-NDBM_File package, versions <0:1.15-481.1.el9_6


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-ORACLE9-PERLNDBMFILE-11030468
  • published28 Jul 2025
  • disclosed30 May 2025

Introduced: 30 May 2025

CVE-2025-40909  (opens in a new tab)

How to fix?

Upgrade Oracle:9 perl-NDBM_File to version 0:1.15-481.1.el9_6 or higher.
This issue was patched in ELSA-2025-11804.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl-NDBM_File package and not the perl-NDBM_File package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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

CVSS Base Scores

version 3.1