Debian dsa-6465 : libcrypto3-udeb - security update

high Nessus Plugin ID 339549

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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-6465 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6465-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso August 25, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : openssl CVE ID : CVE-2026-14456 CVE-2026-14457 CVE-2026-18798 CVE-2026-54874 CVE-2026-63072 CVE-2026-63073 CVE-2026-63074 CVE-2026-63075 CVE-2026-63076 CVE-2026-75803 Debian Bug : 1144615 1145172

Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit, which may result in denial of service.

Additional details can be found in the upstream advisories:
https://openssl-library.org/news/secadv/20260813.txt https://openssl-library.org/news/secadv/20260825.txt

For the stable distribution (trixie), these problems have been fixed in version 3.5.7-1~deb13u2.

We recommend that you upgrade your openssl packages.

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

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 libcrypto3-udeb packages.

Plugin Details

Severity: High

ID: 339549

File Name: debian_DSA-6465.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 8/25/2026

Updated: 8/25/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.59

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-63076

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:libcrypto3-udeb, p-cpe:/a:debian:debian_linux:libssl-dev, p-cpe:/a:debian:debian_linux:libssl-doc, p-cpe:/a:debian:debian_linux:libssl3-udeb, p-cpe:/a:debian:debian_linux:libssl3t64, p-cpe:/a:debian:debian_linux:openssl-provider-fips, p-cpe:/a:debian:debian_linux:openssl-provider-legacy, p-cpe:/a:debian:debian_linux:openssl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/25/2026

Vulnerability Publication Date: 8/5/2026

Reference Information

CVE: CVE-2026-14456, CVE-2026-14457, CVE-2026-18798, CVE-2026-54874, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076, CVE-2026-75803

IAVA: 2026-A-0878

Detections

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