Vulnerability CVE-2011-0281


Published: 2011-02-10   Modified: 2012-02-13

Description:
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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
KDC denial of service attacks
Tom Yu
12.02.2011

Type:

CWE-310

(Cryptographic Issues)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
MIT -> Kerberos 

 References:
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html
http://mailman.mit.edu/pipermail/kerberos/2010-December/016800.html
http://securityreason.com/securityalert/8073
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt
http://www.mandriva.com/security/advisories?name=MDVSA-2011:024
http://www.mandriva.com/security/advisories?name=MDVSA-2011:025
http://www.redhat.com/support/errata/RHSA-2011-0199.html
http://www.redhat.com/support/errata/RHSA-2011-0200.html
http://www.securityfocus.com/archive/1/516299/100/0/threaded
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.securityfocus.com/bid/46265
http://www.securitytracker.com/id?1025037
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://www.vupen.com/english/advisories/2011/0330
http://www.vupen.com/english/advisories/2011/0333
http://www.vupen.com/english/advisories/2011/0347
http://www.vupen.com/english/advisories/2011/0464
https://exchange.xforce.ibmcloud.com/vulnerabilities/65324

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