CVE-2011-4539

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Summary

CVECVE-2011-4539
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-12-08 11:55:02 UTC
Updated2026-04-29 01:13:23 UTC
Descriptiondhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 11.04 All All All
Operating System Canonical Ubuntu Linux 11.10 All All All
Operating System Debian Debian Linux 6.0 All All All
Operating System Debian Debian Linux 7.0 All All All
Application Isc Dhcp 4.0 All All All
Application Isc Dhcp 4.0.0 All All All
Application Isc Dhcp 4.0.1 - All All
Application Isc Dhcp 4.0.1 b1 All All
Application Isc Dhcp 4.0.1 rc1 All All
Application Isc Dhcp 4.0.2 - All All
Application Isc Dhcp 4.0.2 b1 All All
Application Isc Dhcp 4.0.2 b2 All All
Application Isc Dhcp 4.0.2 b3 All All
Application Isc Dhcp 4.0.2 rc1 All All
Application Isc Dhcp 4.0.3 - All All
Application Isc Dhcp 4.0.3 b1 All All
Application Isc Dhcp 4.0.3 rc1 All All
Application Isc Dhcp 4.1-esv - All All
Application Isc Dhcp 4.1-esv r1 All All
Application Isc Dhcp 4.1-esv r2 All All
Application Isc Dhcp 4.1-esv r3 All All
Application Isc Dhcp 4.1-esv r3_b1 All All
Application Isc Dhcp 4.1.1 b3 All All
Application Isc Dhcp 4.1.1 rc1 All All
Application Isc Dhcp 4.1.2 All All All
Application Isc Dhcp 4.2.0 - All All
Application Isc Dhcp 4.2.0 a1 All All
Application Isc Dhcp 4.2.0 a2 All All
Application Isc Dhcp 4.2.0 b1 All All
Application Isc Dhcp 4.2.0 b2 All All
Application Isc Dhcp 4.2.0 p1 All All
Application Isc Dhcp 4.2.0 rc1 All All
Application Isc Dhcp 4.2.1 - All All
Application Isc Dhcp 4.2.1 b1 All All
Application Isc Dhcp 4.2.1 rc1 All All
Application Isc Dhcp 4.2.2 - All All
Application Isc Dhcp 4.2.2 b1 All All
Application Isc Dhcp 4.2.2 rc1 All All
Application Isc Dhcp 4.2.3 - All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 16 Update: dhcp-4.2.3-4.P1.fc16 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
ISC DHCP Regular Expressions Bug Lets Remote Users Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com Third Party Advisory, VDB Entry
Security Advisory - DHCP Regular Expressions Segfault | Internet Systems Consortium af854a3a-2127-422b-91ae-364da2661108 www.isc.org Vendor Advisory
openSUSE-SU-2011:1318-1: moderate: dhcp af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Security Alerts - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
Debian -- Security Information -- DSA-2519-2 isc-dhcp af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
Security Alerts - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
Gentoo Linux Documentation -- ISC DHCP: Denial of Service af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
USN-1309-1: DHCP vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Support / Security / Advisories / / MDVSA-2011:182 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com Third Party Advisory
[SECURITY] Fedora 15 Update: dhcp-4.2.1-14.P1.fc15 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
ISC DHCP Regular Expressions Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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