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Alibaba Cloud Linux 3 : 0126: perl (ALINUX3-SA-2025:0126)

medium Nessus Plugin ID 243957

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2025:0126 advisory.

 Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

 CVE-2025-40909:
 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 clonethat handle for the new thread, which is visible from any third (ormore) thread already running.
 This may lead to unintended operationssuch as loading code or accessing files from unexpected locations,which a local attacker may be able to exploit.
 The bug was introduced in commit11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

http://mirrors.aliyun.com/alinux/3/cve/alinux3-sa-20250126.xml

Plugin Details

Severity: Medium

ID: 243957

File Name: alinux3_sa_2025-0126.nasl

Version: 1.1

Type: local

Published: 8/6/2025

Updated: 8/6/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 3.8

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:P/A:P

CVSS Score Source: CVE-2025-40909

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-test, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-extutils-embed, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-tests, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-devel-peek, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-io-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-devel-peek-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-errno, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-macros, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-io-zlib, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-module-loaded, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-open, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-extutils-miniperl, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-math-complex, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-selfloader, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-libs-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-time-piece, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-time-piece-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-memoize, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-attribute-handlers, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-pod-html, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-utils, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-devel-selfstubber, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-net-ping, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-libnetcfg, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-interpreter-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-io, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-locale-maketext-simple, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perl-interpreter

Required KB Items: Host/local_checks_enabled, Host/Alibaba/release, Host/Alibaba/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/31/2025

Vulnerability Publication Date: 5/30/2025

Reference Information

CVE: CVE-2025-40909