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EulerOS 2.0 SP12 : perl-Socket (EulerOS-SA-2026-3296)

critical Nessus Plugin ID 343712

Synopsis

The remote EulerOS host is missing a security update.

Description

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

 Socket versions before 2.041 for Perl have an out-of-bounds heap read.

 In Socket.xs, pack_ip_mreq_source() checks the length of its source argument before the argument is read, so the check tests the byte length carried over from the preceding multiaddr argument instead. Both addresses occupy a 4-byte field, so a valid multiaddr lets a source of any length pass the check, and the source is then copied into the 4-byte imr_sourceaddr field with a fixed-size copy. A source shorter than 4 bytes is not rejected, and the copy reads up to 3 bytes past the end of its buffer.

 Calling pack_ip_mreq_source() with a source value shorter than 4 bytes copies adjacent heap memory into the returned packed structure.(CVE-2026-12087)

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

See Also

http://www.nessus.org/u?1be4494e

Plugin Details

Severity: Critical

ID: 343712

File Name: EulerOS_SA-2026-3296.nasl

Version: 1.1

Type: Local

Published: 9/8/2026

Updated: 9/8/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

Percentile: 98.36

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-12087

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:N/A:H

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-socket-help, p-cpe:/a:huawei:euleros:perl-socket

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: 6/15/2026

Reference Information

CVE: CVE-2026-12087