Heap-based buffer overflow in Unbound - CVE-2024-43168
Published: August 23, 2024
Vulnerability identifier: #VU96490
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-43168
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: NLnet Labs
Affected software:
Unbound
Unbound
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the cfg_mark_ports() function in config_file.c. A local user can pass a specially crafted file to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
How to mitigate CVE-2024-43168
Install updates from vendor's website.