CVE-2011-4868

Publication date 15 January 2012

Last updated 24 July 2024

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
isc-dhcp	12.04 LTS precise	Not affected
	11.10 oneiric	Not affected
	11.04 natty	Not affected
	10.10 maverick	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release

How can I get the fixes?
What do statuses mean?

Notes

mdeslaur

vulnerable code was added in 4.2.2, and fixed in 4.2.3-P2

References

MITRE
NVD
Launchpad
Debian

Other references

https://www.isc.org/software/dhcp/advisories/cve-2011-4868
https://www.cve.org/CVERecord?id=CVE-2011-4868