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Debian dsa-5987 : libunbound-dev - security update

high Nessus Plugin ID 258047

Synopsis

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

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5987 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5987-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 27, 2025 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : unbound CVE ID : CVE-2024-8508 CVE-2024-33655 CVE-2025-5994

 Multiple security issues were discovered in Unbound, a validating, recursive, caching DNS resolver, which may result in denial of service or cache poisoning via the rebirthday attack.

 For the oldstable distribution (bookworm), these problems have been fixed in version 1.17.1-2+deb12u3.

 We recommend that you upgrade your unbound packages.

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

 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 libunbound-dev packages.

See Also

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

https://security-tracker.debian.org/tracker/CVE-2024-33655

https://security-tracker.debian.org/tracker/CVE-2024-8508

https://security-tracker.debian.org/tracker/CVE-2025-5994

https://packages.debian.org/source/bookworm/unbound

Plugin Details

Severity: High

ID: 258047

File Name: debian_DSA-5987.nasl

Version: 1.1

Type: local

Agent: unix

Published: 8/27/2025

Updated: 8/27/2025

Supported Sensors: Continuous Assessment, Nessus Agent, 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-2024-8508

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2025-5994

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:python3-unbound, p-cpe:/a:debian:debian_linux:unbound-anchor, p-cpe:/a:debian:debian_linux:unbound, p-cpe:/a:debian:debian_linux:libunbound8, p-cpe:/a:debian:debian_linux:libunbound-dev, p-cpe:/a:debian:debian_linux:unbound-host, cpe:/o:debian:debian_linux:12.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/27/2025

Vulnerability Publication Date: 5/9/2024

Reference Information

CVE: CVE-2024-33655, CVE-2024-8508, CVE-2025-5994

IAVA: 2024-A-0682