CVE-2011-1528

krb5: KDC denial of service vulnerabilities (MITKRB5-SA-2011-006)

Severity Score

7.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, related to the locked_check_p function. NOTE: the Berkeley DB vector is covered by CVE-2011-4151.

La función krb5_ldap_lockout_audit en el Key Distribution Center (KDC) en MIT Kerberos 5 (también se conoce como krb5) versión 1.8 hasta 1.8.4 y versión 1.9 hasta 1.9.1, cuando se utiliza el back-end LDAP, permite a los atacantes remotos causar una denegación de servicio (fallo de aserción y salida de demonio) por medio de vectores no especificados, relacionados con la función locked_check_p. NOTA: El vector Berkeley DB está cubierto por CVE-2011-4151.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-03-29 CVE Reserved
2011-10-19 CVE Published
2024-08-06 CVE Updated
2024-11-05 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (9)

URL	Tag	Source
http://www.kb.cert.org/vuls/id/659251	Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/715579	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00009.html	2020-01-21
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt	2020-01-21
http://www.mandriva.com/security/advisories?name=MDVSA-2011:159	2020-01-21
http://www.mandriva.com/security/advisories?name=MDVSA-2011:160	2020-01-21
http://www.redhat.com/support/errata/RHSA-2011-1379.html	2020-01-21
https://access.redhat.com/security/cve/CVE-2011-1528	2011-10-18
https://bugzilla.redhat.com/show_bug.cgi?id=737711	2011-10-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.8 Search vendor "Mit" for product "Kerberos 5" and version "1.8"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.8.1 Search vendor "Mit" for product "Kerberos 5" and version "1.8.1"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.8.2 Search vendor "Mit" for product "Kerberos 5" and version "1.8.2"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.8.3 Search vendor "Mit" for product "Kerberos 5" and version "1.8.3"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.8.4 Search vendor "Mit" for product "Kerberos 5" and version "1.8.4"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.9 Search vendor "Mit" for product "Kerberos 5" and version "1.9"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.9.1 Search vendor "Mit" for product "Kerberos 5" and version "1.9.1"		-		Affected