Debian dsa-6412 : botan - security update

medium Nessus Plugin ID 332087

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-6412 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6412-1 [email protected] https://www.debian.org/security/ Aron Xu August 05, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : botan3 CVE ID : CVE-2026-44378 Debian Bug :

Multiple security issues were discovered in Botan, a C++ cryptography library, which could result in denial of service, certificate validation bypass or authentication bypass.

These issues have been addressed by updating botan3 to the new upstream release 3.12.0. As a consequence this update changes the SONAME of the shared library, and the runtime library package is renamed from libbotan-3-7 to libbotan-3-12. No package in the stable distribution links against the library, so no other packages in trixie are affected by this change.

The libbotan-3-7 package is no longer built and will not be removed automatically on upgrade if it had been installed manually. Locally built or third-party software linking against libbotan-3-7 needs to be rebuilt against libbotan-3-12, after which the old library package can be removed.

For the stable distribution (trixie), this problem has been fixed in version 3.12.0+dfsg-2~deb13u1.

We recommend that you upgrade your botan3 packages.

For the detailed security status of botan3 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/botan3

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 botan packages.

Plugin Details

Severity: Medium

ID: 332087

File Name: debian_DSA-6412.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 8/5/2026

Updated: 8/5/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.35

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-2026-44378

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:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:botan, p-cpe:/a:debian:debian_linux:libbotan-3-12, p-cpe:/a:debian:debian_linux:libbotan-3-dev, p-cpe:/a:debian:debian_linux:libbotan-3-doc, p-cpe:/a:debian:debian_linux:python3-botan

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/5/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-44378

Detections

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