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

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CVE-2013-2494

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
28/03/2013
Last modified:
11/04/2025

Description

libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service (memory consumption) via vectors involving a regular expression, as demonstrated by a memory-exhaustion attack against a machine running a dhcpd process, a related issue to CVE-2013-2266.

Impact

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

Base Score: 4.90 MEDIUM
Vector: AV:N/AC:H/Au:S/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
4.90
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:isc:dhcp:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.2:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.3:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.2.3:p1:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools