CVE catalog
CVE-2024-43168
Unbound vulnerabilities
- Severity
- Medium · CVSS 4.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.31% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | unbound | sid | 1.26.2-1 | fixed |
| Debian | unbound | forky | 1.26.2-1 | fixed |
| Debian | unbound | trixie | 1.22.0-2+deb13u3 | fixed |
| Debian | unbound | trixie-security | 1.26.2-0+deb13u1 | fixed |
| Debian | unbound | bookworm | 1.17.1-2+deb12u4 | fixed |
| Debian | unbound | bookworm-security | 1.17.1-2+deb12u3 | fixed |
| Ubuntu | unbound | noble | 1.19.2-1ubuntu3.2 | fixed |
| Ubuntu | libunbound-dev | noble | 1.19.2-1ubuntu3.2 | fixed |
| Ubuntu | libunbound8 | noble | 1.19.2-1ubuntu3.2 | fixed |
| Ubuntu | python3-unbound | noble | 1.19.2-1ubuntu3.2 | fixed |
| Ubuntu | unbound-anchor | noble | 1.19.2-1ubuntu3.2 | fixed |
| Ubuntu | unbound-host | noble | 1.19.2-1ubuntu3.2 | fixed |
| Ubuntu | unbound | pro | 1.6.5-1 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1build1 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu1 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.1 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.2 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.3 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.4 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.5 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.6 | vulnerable |
| Ubuntu | unbound | pro | 1.6.7-1ubuntu2.6+esm2 | fixed |
| Ubuntu | unbound | 20.04 | 1.9.0-2ubuntu1 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.0-2ubuntu2 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.1 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.2 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.3 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.4 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.5 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.6 | vulnerable |
| Ubuntu | unbound | 20.04 | 1.9.4-2ubuntu1.8 | fixed |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu1 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu3 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5.1 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5.2 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5.3 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5.4 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5.5 | vulnerable |
| Ubuntu | unbound | 22.04 | 1.13.1-1ubuntu5.7 | fixed |
| Ubuntu | unbound | 24.04 | 1.17.1-2 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.18.0-2ubuntu1 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.18.0-2ubuntu2 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.19.1-1ubuntu1 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.19.2-1ubuntu1 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.19.2-1ubuntu3 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.19.2-1ubuntu3.1 | vulnerable |
| Ubuntu | unbound | 24.04 | 1.19.2-1ubuntu3.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | unbound | source | sid | 1.20.0-1 | unimportant | Not reported | Not reported |
| Debian | unbound | source | forky | 1.20.0-1 | unimportant | Not reported | Not reported |
| Debian | unbound | source | trixie | 1.20.0-1 | unimportant | Not reported | Not reported |
| Debian | unbound | source | bookworm | 1.17.1-2+deb12u3 | not yet assigned | Not reported | Not reported |
| Ubuntu | unbound | deb | noble | 1.19.2-1ubuntu3.2 | Not reported | Not reported | Not reported |
| Ubuntu | libunbound-dev | deb | noble | 1.19.2-1ubuntu3.2 | Not reported | Not reported | Not reported |
| Ubuntu | libunbound8 | deb | noble | 1.19.2-1ubuntu3.2 | Not reported | Not reported | Not reported |
| Ubuntu | python3-unbound | deb | noble | 1.19.2-1ubuntu3.2 | Not reported | Not reported | Not reported |
| Ubuntu | unbound-anchor | deb | noble | 1.19.2-1ubuntu3.2 | Not reported | Not reported | Not reported |
| Ubuntu | unbound-host | deb | noble | 1.19.2-1ubuntu3.2 | Not reported | Not reported | Not reported |
| Ubuntu | unbound | deb | pro | 1.6.7-1ubuntu2.6+esm2 | Not reported | UBUNTU-CVE-2024-43168 | Not reported |
| Ubuntu | unbound | deb | 20.04 | 1.9.4-2ubuntu1.8 | Not reported | UBUNTU-CVE-2024-43168 | Not reported |
| Ubuntu | unbound | deb | 22.04 | 1.13.1-1ubuntu5.7 | Not reported | UBUNTU-CVE-2024-43168 | Not reported |
| Ubuntu | unbound | deb | 24.04 | 1.19.2-1ubuntu3.2 | Not reported | UBUNTU-CVE-2024-43168 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libunbound8]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
- [libunbound-dev]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
- [python3-unbound]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
- [unbound]Unknown
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
- [unbound-anchor]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
- [unbound-host]Unknown
Source package: [unbound]
Details (4)
1.17.1-2+deb12u4· amd64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u4· arm64 · bookwormFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
1.17.1-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
1.17.1-2+deb12u3usn · unbound · debian · bookworm; usn · unbound · debian · 12
[Debian 13 (Trixie)]
- [libunbound8]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
- [libunbound-dev]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
- [python3-unbound]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
- [unbound]Unknown
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
- [unbound-anchor]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
- [unbound-host]Unknown
Source package: [unbound]
Details (6)
1.22.0-2+deb13u3· amd64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixieFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.22.0-2+deb13u3· arm64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.1-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
1.26.2-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.0-1usn · unbound · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-43168]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-43168]
- [https://security-tracker.debian.org/tracker/CVE-2024-43168]
- [https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-43168.json]
- [https://ubuntu.com/security/notices/USN-6998-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [Ubuntu Security Notices (USN)]