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Vulnerability · Published Aug 8, 2024 · Assigned by redhat

CVE-2024-43168Unbound: heap-buffer-overflow in unbound

Medium 4.8

In plain English

A medium-severity heap buffer overflow in Red Hat Enterprise Linux 6 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)0.3%top 75.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12unbound1.17.1-2+deb12u3DEBIAN-CVE-2024-43168
Debian:13unbound1.20.0-1DEBIAN-CVE-2024-43168
Debian:14unbound1.20.0-1DEBIAN-CVE-2024-43168
Ubuntu:22.04:LTSunbound1.13.1-1ubuntu5.7USN-6998-1
Ubuntu:22.04:LTSunbound1.13.1-1ubuntu5.7UBUNTU-CVE-2024-43168
Ubuntu:24.04:LTSunbound1.19.2-1ubuntu3.2USN-6998-1
Ubuntu:24.04:LTSunbound1.19.2-1ubuntu3.2UBUNTU-CVE-2024-43168

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenStack Platform 16.2 see references
Red Hat Red Hat OpenStack Platform 17.1 see references
Red Hat Red Hat OpenStack Platform 18.0 see references
Red Hat Red Hat OpenStack Platform 18.0 see references
Red Hat Red Hat OpenStack Platform 18.0 see references

Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

References