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Debian dsa-6086 : dropbear - security update

critical Nessus Plugin ID 279441

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6086 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6086-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff December 19, 2025 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : dropbear CVE ID : CVE-2025-14282

 Turistu discovered that incorrect permission handling in the Dropbear SSH server could result in privilege escalation.

 The oldstable distribution (bookworm) is not affected.

 For the stable distribution (trixie), this problem has been fixed in version 2025.89-1~deb13u1.

 We recommend that you upgrade your dropbear packages.

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

 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 this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the dropbear packages.

See Also

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

https://security-tracker.debian.org/tracker/CVE-2025-14282

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

Plugin Details

Severity: Critical

ID: 279441

File Name: debian_DSA-6086.nasl

Version: 1.1

Type: local

Agent: unix

Published: 12/19/2025

Updated: 12/19/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2025-14282

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:debian:debian_linux:dropbear, p-cpe:/a:debian:debian_linux:dropbear-bin, p-cpe:/a:debian:debian_linux:dropbear-initramfs, cpe:/o:debian:debian_linux:13.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/19/2025

Vulnerability Publication Date: 12/19/2025

Reference Information

CVE: CVE-2025-14282