CVE-2011-4868

Summary

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.

Impact & exploitability

AV:A/AC:L/Au:N/C:N/I:N/A:C

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Additional information

• NVD record
• https://www.isc.org/software/dhcp/advisories/cve-2011-4868Advisory
• http://security.gentoo.org/glsa/glsa-201301-06.xml
• https://deepthought.isc.org/article/AA-00595
• https://kb.isc.org/article/AA-00705