Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-4868

Severity CVSS v4.0:
Pending analysis
Type:
CWE-399 Resource Management Errors
Publication date:
15/01/2012
Last modified:
11/04/2025

Description

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

Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:isc:dhcp:*:p1:*:*:*:*:*:* 4.2.3 (including)
cpe:2.3:a:isc:dhcp:3.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel1:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel10:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel11:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel12:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel13:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel14:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel15:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel16:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel18:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel19:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel2:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel20:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0:beta2:patchlevel21:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools