CVE catalog
CVE-2012-3955
isc-dhcp: CVE-2012-3955
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 21.65% · Oct 25, 2026
ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.
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 | isc-dhcp | trixie | 4.4.3-P1-8 | fixed |
| Debian | isc-dhcp | bookworm | 4.4.3-P1-2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | isc-dhcp | source | trixie | 4.2.4-2 | not yet assigned | Not reported | Not reported |
| Debian | isc-dhcp | source | bookworm | 4.2.4-2 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [isc-dhcp-client]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
- [isc-dhcp-client-ddns]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
- [isc-dhcp-common]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
- [isc-dhcp-dev]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
- [isc-dhcp-relay]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
- [isc-dhcp-server]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
- [isc-dhcp-server-ldap]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-2· amd64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
4.4.3-P1-2· arm64 · bookwormFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · bookworm; dsa · isc-dhcp · debian · 12
[Debian 13 (Trixie)]
- [isc-dhcp-client]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-client-ddns]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-common]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-dev]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-keama]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-relay]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-server]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
- [isc-dhcp-server-ldap]Fixed
Source package: [isc-dhcp]
Details (2)
4.4.3-P1-8· amd64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
4.4.3-P1-8· arm64 · trixieFixed · Fixed:
4.2.4-2dsa · isc-dhcp · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2013:0504]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_10358-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2012-3955]
- [https://osv.dev/vulnerability/DSA-2551-1]
- [https://security-tracker.debian.org/tracker/CVE-2012-3955]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]