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krb5: KDC hang when using LDAP backend caused by special principal name (MITKRB5-SA-2011-002)

🗓️ 08 Feb 2011 21:39:00Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

KDC hang and denial of service in MIT Kerberos with LDAP via special principal name escape.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
FreeBSD		krb5 -- MITKRB5-SA-2011-002, KDC vulnerable to hang when using LDAP back end
8 Feb 201100:00
–freebsd
BDU FSTEC		Vulnerabilities of the Gentoo Linux operating system, which allow a remote attacker to compromise the confidentiality, integrity, and accessibility of protected information
28 Apr 201500:00
–bdu_fstec
Tenable Nessus		CentOS 5 : krb5 (CESA-2011:0199)
15 Apr 201100:00
–nessus
Tenable Nessus		Fedora 13 : krb5-1.7.1-17.fc13 (2011-1210)
18 Feb 201100:00
–nessus
Tenable Nessus		Fedora 14 : krb5-1.8.2-8.fc14 (2011-1225)
18 Feb 201100:00
–nessus
Tenable Nessus		FreeBSD : krb5 -- MITKRB5-SA-2011-002, KDC vulnerable to hang when using LDAP back end (4ab413ea-66ce-11e0-bf05-d445f3aa24f0)
15 Apr 201100:00
–nessus
Tenable Nessus		GLSA-201201-13 : MIT Kerberos 5: Multiple vulnerabilities
24 Jan 201200:00
–nessus
Tenable Nessus		Mandriva Linux Security Advisory : krb5 (MDVSA-2011:024)
10 Feb 201100:00
–nessus
Tenable Nessus		Mandriva Linux Security Advisory : krb5 (MDVSA-2011:025)
10 Feb 201100:00
–nessus
Tenable Nessus		MiracleLinux 3 : krb5-1.6.1-55.AXS3.1 (AXSA:2011-25:01)
14 Jan 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux5i386krb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.i386.rpm
Red Hat Enterprise Linux5ia64krb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.ia64.rpm
Red Hat Enterprise Linux5ppckrb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.ppc.rpm
Red Hat Enterprise Linux5ppc64krb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.ppc64.rpm
Red Hat Enterprise Linux5s390krb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.s390.rpm
Red Hat Enterprise Linux5s390xkrb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.s390x.rpm
Red Hat Enterprise Linux5x86_64krb5-debuginfo0:1.6.1-55.el5_6.1krb5-debuginfo-0:1.6.1-55.el5_6.1.x86_64.rpm
Red Hat Enterprise Linux5i386krb5-devel0:1.6.1-55.el5_6.1krb5-devel-0:1.6.1-55.el5_6.1.i386.rpm
Red Hat Enterprise Linux5ia64krb5-devel0:1.6.1-55.el5_6.1krb5-devel-0:1.6.1-55.el5_6.1.ia64.rpm
Red Hat Enterprise Linux5ppckrb5-devel0:1.6.1-55.el5_6.1krb5-devel-0:1.6.1-55.el5_6.1.ppc.rpm
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28 Jan 2026 22:51Current
6.6Medium risk
Vulners AI Score6.6
CVSS 25
EPSS0.04202
kerberos 5directory backendspecial principal namebackslash escapedenial of service
2