CVE-2011-4539

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.

• CWE-20

• https://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.htmlMailing List, Third Party Advisory
• https://lists.opensuse.org/opensuse-updates/2011-12/msg00006.htmlMailing List, Third Party Advisory
• https://secunia.com/advisories/47153Third Party Advisory
• https://secunia.com/advisories/47178Third Party Advisory
• https://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory
• https://www.debian.org/security/2012/dsa-2519Third Party Advisory
• https://www.mandriva.com/security/advisories?name=MDVSA-2011:182Third Party Advisory
• https://www.securityfocus.com/bid/50971Third Party Advisory, VDB Entry
• https://www.securitytracker.com/id?1026393Third Party Advisory, VDB Entry
• https://www.ubuntu.com/usn/USN-1309-1Third Party Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71680Third Party Advisory, VDB Entry
• https://www.isc.org/software/dhcp/advisories/cve-2011-4539Vendor Advisory
• https://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.htmlMailing List, Third Party Advisory
• https://lists.opensuse.org/opensuse-updates/2011-12/msg00006.htmlMailing List, Third Party Advisory
• https://secunia.com/advisories/47153Third Party Advisory
• https://secunia.com/advisories/47178Third Party Advisory
• https://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory
• https://www.debian.org/security/2012/dsa-2519Third Party Advisory
• https://www.mandriva.com/security/advisories?name=MDVSA-2011:182Third Party Advisory
• https://www.securityfocus.com/bid/50971Third Party Advisory, VDB Entry
• https://www.securitytracker.com/id?1026393Third Party Advisory, VDB Entry
• https://www.ubuntu.com/usn/USN-1309-1Third Party Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71680Third Party Advisory, VDB Entry
• https://www.isc.org/software/dhcp/advisories/cve-2011-4539Vendor Advisory

Published

Dec 8, 2011

Last Modified

Jun 16, 2026

Status

Modified

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