CVE-2011-4539
EPSS 32.3%isc-dhcp - denial of service
Published: 12/8/2011Modified: 4/28/2026
Description
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.
Affected packages (3)
- Debian/isc-dhcpfrom 0, < 4.2.2.dfsg.1-5
- Debian/isc-dhcpfrom 0, < 4.1.1-P1-15+squeeze5
- Debian/isc-dhcpfrom 0, < 4.1.1-P1-15+squeeze6