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EulerOS 2.0 SP12 : perl-Archive-Tar (EulerOS-SA-2026-3290)

critical Nessus Plugin ID 343745

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the versions of the perl-Archive-Tar packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.

 _make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.

 A subsequent open through the extracted name reads or writes the attacker chosen path.(CVE-2026-42496)

Tenable has extracted the preceding description block directly from the EulerOS perl-Archive-Tar 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 perl-Archive-Tar packages.

See Also

http://www.nessus.org/u?67ca735c

Plugin Details

Severity: Critical

ID: 343745

File Name: EulerOS_SA-2026-3290.nasl

Version: 1.1

Type: Local

Published: 9/8/2026

Updated: 9/8/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.64

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-42496

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:perl-archive-tar-help, p-cpe:/a:huawei:euleros:perl-archive-tar

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-42496