CVE-2011-4868 describes a denial-of-service vulnerability in ISC DHCP versions prior to 4.2.3-P2, specifically affecting the dhcpd logging functionality when using Dynamic DNS and issuing IPv6 addresses. An attacker on the adjacent network can exploit this by sending crafted packets related to a lease-status update, leading to a NULL pointer dereference and daemon crash. While the CVSS score is 6.1 (medium severity) due to its network-adjacent attack vector and complete availability impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.2.3CPE matchmatch criteria | cpe:2.3:a:isc:dhcp:*:p1:*:*:*:*:*:* | ||
3.0CPE matchmatch criteria | cpe:2.3:a:isc:dhcp:3.0:*:*:*:*:*:*:* | ||
3.0CPE matchmatch criteria | cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel1:*:*:*:*:* | ||
3.0CPE matchmatch criteria | cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel10:*:*:*:*:* | ||
3.0CPE matchmatch criteria | cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel11:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C
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