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CVE-2011-4539

Date: December 8, 2011

dhcpd 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.

Language: C

Severity Score

Related Resources (16)

https://access.redhat.com/security/cve/CVE-2011-4539
https://www.isc.org/software/dhcp/advisories/cve-2011-4539
http://www.ubuntu.com/usn/USN-1309-1
http://www.securityfocus.com/bid/50971
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:182
http://www.debian.org/security/2012/dsa-2519
http://www.securitytracker.com/id?1026393
https://exchange.xforce.ibmcloud.com/vulnerabilities/71680
http://secunia.com/advisories/47178
http://secunia.com/advisories/47153
http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.html
http://security.gentoo.org/glsa/glsa-201301-06.xml
https://nvd.nist.gov/vuln/detail/CVE-2011-4539
http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.html
https://www.mend.io/vulnerability-database/CVE-2011-4539

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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