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

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CVE-2014-4344

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
14/08/2014
Last modified:
12/04/2025

Description

The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.

Impact

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

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools