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Alibaba Cloud Linux 3 : 0033: libcap (ALINUX3-SA-2025:0033)

medium Nessus Plugin ID 235979

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-2025:0033 advisory.

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

 CVE-2025-1390:
 The PAM module pam_cap.so of libcap configuration supports group names starting with @, during actual parsing, configurations not starting with @ are incorrectly recognized as group names. This may result in nonintended users being granted an inherited capability set, potentially leading to security risks. Attackers can exploit this vulnerability to achieve local privilege escalation on systems where /etc/security/capability.conf is used to configure user inherited privileges by constructing specific usernames.

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-20250033.xml

Plugin Details

Severity: Medium

ID: 235979

File Name: alinux3_sa_2025-0033.nasl

Version: 1.1

Type: local

Published: 5/14/2025

Updated: 5/14/2025

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:L/Au:S/C:P/I:C/A:N

CVSS Score Source: CVE-2025-1390

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcap-devel, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcap-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcap-static, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcap-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcap

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/19/2025

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2025-1390