CVE Vulnerabilities

CVE-2011-0281

Published: Feb 10, 2011 | Modified: Jan 21, 2020
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
5 IMPORTANT
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V3
Ubuntu
MEDIUM

The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used, allows remote attackers to cause a denial of service (file descriptor exhaustion and daemon hang) via a principal name that triggers use of a backslash escape sequence, as demonstrated by a n sequence.

Affected Software

Name Vendor Start Version End Version
Kerberos Mit 5-1.6.3 (including) 5-1.6.3 (including)
Kerberos_5 Mit 1.6 (including) 1.6 (including)
Kerberos_5 Mit 1.6.1 (including) 1.6.1 (including)
Kerberos_5 Mit 1.6.2 (including) 1.6.2 (including)
Kerberos_5 Mit 1.7 (including) 1.7 (including)
Kerberos_5 Mit 1.7.1 (including) 1.7.1 (including)
Kerberos_5 Mit 1.8 (including) 1.8 (including)
Kerberos_5 Mit 1.8.1 (including) 1.8.1 (including)
Kerberos_5 Mit 1.8.2 (including) 1.8.2 (including)
Kerberos_5 Mit 1.8.3 (including) 1.8.3 (including)
Kerberos_5 Mit 1.9 (including) 1.9 (including)
Red Hat Enterprise Linux 5 RedHat krb5-0:1.6.1-55.el5_6.1 *
Red Hat Enterprise Linux 6 RedHat krb5-0:1.8.2-3.el6_0.4 *
Krb5 Ubuntu hardy *
Krb5 Ubuntu karmic *
Krb5 Ubuntu lucid *
Krb5 Ubuntu maverick *

References