Vulnerability Monitor

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CVE-2011-0281

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.

Published

2011-02-10T18:00:55.237

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-310

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mit	kerberos	5-1.6.3	Yes
Application	mit	kerberos_5	1.6	Yes
Application	mit	kerberos_5	1.6.1	Yes
Application	mit	kerberos_5	1.6.2	Yes
Application	mit	kerberos_5	1.7	Yes
Application	mit	kerberos_5	1.7.1	Yes
Application	mit	kerberos_5	1.8	Yes
Application	mit	kerberos_5	1.8.1	Yes
Application	mit	kerberos_5	1.8.2	Yes
Application	mit	kerberos_5	1.8.3	Yes
Application	mit	kerberos_5	1.9	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html ([email protected])
http://mailman.mit.edu/pipermail/kerberos/2010-December/016800.html ([email protected])
http://secunia.com/advisories/43260 Vendor Advisory ([email protected])
http://secunia.com/advisories/43273 Vendor Advisory ([email protected])
http://secunia.com/advisories/43275 Vendor Advisory ([email protected])
http://secunia.com/advisories/46397 ([email protected])
http://securityreason.com/securityalert/8073 ([email protected])
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt Vendor Advisory ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2011:024 ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2011:025 ([email protected])
http://www.redhat.com/support/errata/RHSA-2011-0199.html ([email protected])
http://www.redhat.com/support/errata/RHSA-2011-0200.html ([email protected])
http://www.securityfocus.com/archive/1/516299/100/0/threaded ([email protected])
http://www.securityfocus.com/archive/1/520102/100/0/threaded ([email protected])
http://www.securityfocus.com/bid/46265 ([email protected])
http://www.securitytracker.com/id?1025037 ([email protected])
http://www.vmware.com/security/advisories/VMSA-2011-0012.html ([email protected])
http://www.vupen.com/english/advisories/2011/0330 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2011/0333 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2011/0347 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2011/0464 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/65324 ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html (af854a3a-2127-422b-91ae-364da2661108)
http://mailman.mit.edu/pipermail/kerberos/2010-December/016800.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/43260 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/43273 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/43275 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/46397 (af854a3a-2127-422b-91ae-364da2661108)
http://securityreason.com/securityalert/8073 (af854a3a-2127-422b-91ae-364da2661108)
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:024 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:025 (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2011-0199.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2011-0200.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/516299/100/0/threaded (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/520102/100/0/threaded (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/46265 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1025037 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vmware.com/security/advisories/VMSA-2011-0012.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0330 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0333 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0347 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0464 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/65324 (af854a3a-2127-422b-91ae-364da2661108)