CVE-2024-43168

Publication date 12 August 2024

Last updated 30 May 2025

Ubuntu priority

Cvss 3 Severity Score

DISPUTE NOTE: this issue does not pose a security risk as it (according to analysis by the original software developer, NLnet Labs) falls within the expected functionality and security controls of the application. Red Hat has made a claim that there is a security risk within Red Hat products. NLnet Labs has no further information about the claim, and suggests that affected Red Hat customers refer to available Red Hat documentation or support channels. ORIGINAL DESCRIPTION: A heap-buffer-overflow flaw was found in the cfg_mark_ports function within Unbound’s config_file.c, which can lead to memory corruption. This issue could allow an attacker with local access to provide specially crafted input, potentially causing the application to crash or allowing arbitrary code execution. This could result in a denial of service or unauthorized actions on the system.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
unbound	24.04 LTS noble	Fixed 1.19.2-1ubuntu3.2
	22.04 LTS jammy	Fixed 1.13.1-1ubuntu5.7
	20.04 LTS focal	Fixed 1.9.4-2ubuntu1.8
	18.04 LTS bionic	Fixed 1.6.7-1ubuntu2.6+esm2
	16.04 LTS xenial	Fixed 1.5.8-1ubuntu1.1+esm1
	14.04 LTS trusty	Fixed 1.4.22-1ubuntu4.14.04.3+esm1

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Severity score breakdown

Parameter	Value
Base score	4.8 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity impact	Low
Availability impact	Low
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

References

Related Ubuntu Security Notices (USN)

USN-6998-1
Unbound vulnerabilities
11 September 2024