Detections
Analytics

Debian dsa-6410 : libssh-4 - security update

medium Nessus Plugin ID 331648

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6410 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6410-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso August 02, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : libssh CVE ID : CVE-2026-0964 CVE-2026-0965 CVE-2026-0966 CVE-2026-0967 CVE-2026-0968 CVE-2026-3731 CVE-2026-15370 CVE-2026-59843 CVE-2026-59844 CVE-2026-59845 CVE-2026-59846 CVE-2026-59847 CVE-2026-59848 CVE-2026-59849 CVE-2026-59850 Debian Bug : 1127693 1142537

 Several vulnerabilities were discovered in libssh, a tiny C SSH library, which may result in denial of service, information disclosure and potentially the execution of arbitrary code.

 For the stable distribution (trixie), these problems have been fixed in version 0.11.5-0+deb13u1.

 We recommend that you upgrade your libssh packages.

 For the detailed security status of libssh please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/libssh

 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

 Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the libssh-4 packages.

See Also

https://packages.debian.org/source/trixie/libssh

https://security-tracker.debian.org/tracker/CVE-2026-0964

https://security-tracker.debian.org/tracker/CVE-2026-0965

https://security-tracker.debian.org/tracker/CVE-2026-0966

https://security-tracker.debian.org/tracker/CVE-2026-0967

https://security-tracker.debian.org/tracker/CVE-2026-0968

https://security-tracker.debian.org/tracker/CVE-2026-15370

https://security-tracker.debian.org/tracker/CVE-2026-3731

https://security-tracker.debian.org/tracker/CVE-2026-59843

https://security-tracker.debian.org/tracker/CVE-2026-59844

https://security-tracker.debian.org/tracker/CVE-2026-59845

https://security-tracker.debian.org/tracker/CVE-2026-59846

https://security-tracker.debian.org/tracker/CVE-2026-59847

https://security-tracker.debian.org/tracker/CVE-2026-59848

https://security-tracker.debian.org/tracker/CVE-2026-59849

https://security-tracker.debian.org/tracker/CVE-2026-59850

https://security-tracker.debian.org/tracker/source-package/libssh

Plugin Details

Severity: Medium

ID: 331648

File Name: debian_DSA-6410.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/2/2026

Updated: 8/2/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.13

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: 8.2

Temporal Score: 7.1

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

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

CVSS Score Source: CVE-2026-0966

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:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:libssh-4, p-cpe:/a:debian:debian_linux:libssh-dev, p-cpe:/a:debian:debian_linux:libssh-doc

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/2/2026

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-2026-15370, CVE-2026-3731, CVE-2026-59843, CVE-2026-59844, CVE-2026-59845, CVE-2026-59846, CVE-2026-59847, CVE-2026-59848, CVE-2026-59849, CVE-2026-59850