CVE-2011-1527

The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:N/C:N/I:N/A:C
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 87%
VendorProductVersion
mitkerberos_5
1.9
mitkerberos_5
1.9.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
krb5
bullseye (security)
1.18.3-6+deb11u5
fixed
bullseye
1.18.3-6+deb11u5
fixed
squeeze
not-affected
lenny
not-affected
bookworm
1.20.1-2+deb12u2
fixed
bookworm (security)
1.20.1-2+deb12u2
fixed
sid
1.21.3-3
fixed
trixie
1.21.3-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
krb5
oneiric
Fixed 1.9.1+dfsg-1ubuntu1.1
released
natty
not-affected
maverick
not-affected
lucid
not-affected
hardy
not-affected
Common Weakness Enumeration
References
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt
http://www.kb.cert.org/vuls/id/659251
http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
http://www.redhat.com/support/errata/RHSA-2011-1379.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt
http://www.kb.cert.org/vuls/id/659251
http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
http://www.redhat.com/support/errata/RHSA-2011-1379.html