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SUSE SLES12 Security Update : libssh (SUSE-SU-2026:1344-1)

medium Nessus Plugin ID 306680

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1344-1 advisory.

 - CVE-2026-3731: denial of service via out-of-bounds read in SFTP extension name handler (bsc#1259377).
 - CVE-2026-0964: SCP protocol path traversal in `ssh_scp_pull_request()` (bsc#1258049).
 - CVE-2026-0965: possible denial of service when parsing unexpected configuration files (bsc#1258045).
 - CVE-2026-0966: buffer underflow in `ssh_get_hexa()` on invalid input (bsc#1258054).
 - CVE-2026-0967: specially crafted patterns could cause a denial of service (bsc#1258081).
 - CVE-2026-0968: out-of-bounds read in `sftp_parse_longname()` (bsc#1258080).

Tenable has extracted the preceding description block directly from the SUSE 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-devel-doc package.

See Also

https://bugzilla.suse.com/1258045

https://bugzilla.suse.com/1258049

https://bugzilla.suse.com/1258054

https://bugzilla.suse.com/1258080

https://bugzilla.suse.com/1258081

https://bugzilla.suse.com/1259377

https://lists.suse.com/pipermail/sle-updates/2026-April/045541.html

https://www.suse.com/security/cve/CVE-2026-0964

https://www.suse.com/security/cve/CVE-2026-0965

https://www.suse.com/security/cve/CVE-2026-0966

https://www.suse.com/security/cve/CVE-2026-0967

https://www.suse.com/security/cve/CVE-2026-0968

https://www.suse.com/security/cve/CVE-2026-3731

Plugin Details

Severity: Medium

ID: 306680

File Name: suse_SU-2026-1344-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/16/2026

Updated: 4/16/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-3731

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:libssh-devel-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2026

Vulnerability Publication Date: 2/19/2026

Reference Information

CVE: CVE-2026-0964, CVE-2026-0965, CVE-2026-0966, CVE-2026-0967, CVE-2026-0968, CVE-2026-3731

SuSE: SUSE-SU-2026:1344-1