CVE-2024-43168: Heap-buffer-overflow Flaw Was Found
Source GCVE Database
Not known to be exploited · CVSS 4.8 Medium.
Data as of 30 Oct 2026, 02:50 UTC
Thin evidence
One scorer or none| CNA (NLnet Labs) | CVSS 3.1 | 4.8 |
|---|
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 8 Aug 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
As per the Red Hat advisory, no mitigation or fix currently meets the criteria for ease of use, deployment, applicability, or stability. Users are advised to monitor Red Hat advisories for updates and consider upgrading to supported product versions once fixes become available. No immediate workaround is provided.
Description
A heap-buffer-overflow vulnerability exists in the cfg_mark_ports function of Unbound's config_file.c. This flaw can cause memory corruption when an attacker with local access provides specially crafted input. The issue may lead to application crashes or potentially allow arbitrary code execution, resulting in denial of service or unauthorized system actions. The vulnerability has a medium severity rating with a CVSS score of 4.8. Currently, no official fix or mitigation meeting Red Hat's criteria is available.
References
- nvd.nist.gov/vuln/detail/CVE-2024-43168 (opens in a new tab)
- github.com/NLnetLabs/unbound/issues/1039 (opens in a new tab)
- github.com/NLnetLabs/unbound/pull/1040/files (opens in a new tab)
- access.redhat.com/security/cve/CVE-2024-43168 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2303462 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/09/msg00046.html (opens in a new tab)