DEBIAN-CVE-2011-4868

DEBIAN-CVE-2011-4868 PUBLISHED CVSS 8.699999809265137 HIGH

The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.

Risk Scores

CVSS v4.0

8.699999809265137

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Products

Vendor	Product	Versions
Debian:13	isc-dhcp	0, 0, 0
Debian:11	isc-dhcp	0, 0, 0
Debian:12	isc-dhcp	0, 0, 0

Timeline

Jan 15, 2012 CVE Published
Apr 28, 2026 CVE Updated

References

https://security-tracker.debian.org/tracker/CVE-2011-4868 advisory

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