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

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CVE-2007-2926

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
24/07/2007
Last modified:
09/04/2025

Description

ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sending NOTIFY messages to slave name servers, which makes it easier for remote attackers to guess the next query id and perform DNS cache poisoning.

Impact

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

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.5:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.5.0:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools