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EulerOS Virtualization 2.13.0 : libssh (EulerOS-SA-2025-2584)

high Nessus Plugin ID 279341

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the libssh package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

 There's a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to ssh_get_fingerprint_hash() function. In such cases the bin_to_base64() function can experience an integer overflow leading to a memory under allocation, when that happens it's possible that the program perform out of bounds write leading to a heap corruption.
 This issue affects only 32-bits builds of libssh.(CVE-2025-4877)

 A vulnerability, which was classified as problematic, was found in libssh up to 0.11.1.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 0.11.2 eliminates this vulnerability.(CVE-2025-5372)

 A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption.(CVE-2025-4878)

 A flaw was found in the libssh library. An out-of-bounds read can be triggered in the sftp_handle function due to an incorrect comparison check that permits the function to access memory beyond the valid handle list and to return an invalid pointer, which is used in further processing. This vulnerability allows an authenticated remote attacker to potentially read unintended memory regions, exposing sensitive information or affect service behavior.(CVE-2025-5318)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization libssh security advisory.

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

Solution

Update the affected libssh packages.

See Also

http://www.nessus.org/u?d2851986

Plugin Details

Severity: High

ID: 279341

File Name: EulerOS_SA-2025-2584.nasl

Version: 1.1

Type: local

Published: 12/18/2025

Updated: 12/18/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2025-5372

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libssh, cpe:/o:huawei:euleros:uvp:2.13.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/18/2025

Vulnerability Publication Date: 6/24/2025

Reference Information

CVE: CVE-2025-4877, CVE-2025-4878, CVE-2025-5318, CVE-2025-5372

IAVA: 2025-A-0462-S