An unexpected client identifier parameter can cause the ISC DHCP daemon to
segmentation fault when running in DHCPv6 mode, resulting in a denial of
service to further client requests. In order to exploit this condition, an
attacker must be able to send requests to the DHCP server.
ISC DHCP versions 4.2.x are vulnerable to this flaw; earlier versions are not affected.
Upstream acknowledges Markus Hietava of Codenomicon CROSS project as the original reporter of this issue.
Not vulnerable. This issue did not affect the versions of dhcp as shipped with Red Hat Enterprise Linux 5 and 6.
This is now public:
Created dhcp tracking bugs for this issue
Affects: fedora-all [bug 842892]
dhcp-4.2.4-9.P1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
dhcp-4.2.3-11.P2.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.