CVE & CISA-KEV Catalog

CVE-2024-43168

MEDIUM
4.8
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
unboundDebian
Fixed in:1.13.1-1+deb11u3CVE-2024-43168
Fixed in:1.17.1-2+deb12u3CVE-2024-43168
Fixed in:1.20.0-1CVE-2024-43168
Fixed in:1.20.0-1CVE-2024-43168
libunbound2Ubuntu
Fixed in:1.4.22-1ubuntu4.14.04.3+esm1USN-6998-1
Fixed in:1.5.8-1ubuntu1.1+esm1USN-6998-1
Fixed in:1.6.7-1ubuntu2.6+esm2USN-6998-1
libunbound8Ubuntu
Fixed in:1.9.4-2ubuntu1.8USN-6998-1
Fixed in:1.13.1-1ubuntu5.7USN-6998-1
Fixed in:1.19.2-1ubuntu3.2USN-6998-1
unboundUbuntu
Fixed in:1.4.22-1ubuntu4.14.04.3+esm1USN-6998-1
Fixed in:1.5.8-1ubuntu1.1+esm1USN-6998-1
Fixed in:1.6.7-1ubuntu2.6+esm2USN-6998-1
Fixed in:1.9.4-2ubuntu1.8USN-6998-1
Fixed in:1.13.1-1ubuntu5.7USN-6998-1
Fixed in:1.19.2-1ubuntu3.2USN-6998-1
unbound-hostUbuntu
Fixed in:1.4.22-1ubuntu4.14.04.3+esm1USN-6998-1
Fixed in:1.5.8-1ubuntu1.1+esm1USN-6998-1
Fixed in:1.6.7-1ubuntu2.6+esm2USN-6998-1
Fixed in:1.9.4-2ubuntu1.8USN-6998-1
Fixed in:1.13.1-1ubuntu5.7USN-6998-1
Fixed in:1.19.2-1ubuntu3.2USN-6998-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityLow

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Exploit Intelligence

0.31%probability of exploitation in 30 days
23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-3113Critical9.8100%KEVFix
CVE-2024-26256High7.888%-Fix
CVE-2020-25687Medium5.987%-Fix
CVE-2009-3459High8.886%KEVFix
CVE-2021-21017High8.886%KEV-
CVE-2020-25683Medium5.986%-Fix
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.