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Mandriva Linux Security Advisory 2011-159

Mandriva Linux Security Advisory 2011-159
Posted Oct 23, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-159 - The kdb_ldap plugin in the Key Distribution Center in MIT Kerberos 5 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service 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. The krb5_ldap_lockout_audit function in the Key Distribution Center 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 via unspecified vectors, related to the locked_check_p function. The lookup_lockout_policy function in the Key Distribution Center in MIT Kerberos 5 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 or LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger certain process_as_req errors. The updated packages have been patched to correct these issues.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2011-1527, CVE-2011-1528, CVE-2011-1529
MD5 | 779a71fcefab26a8776b0bc7268721eb

Mandriva Linux Security Advisory 2011-159

Change Mirror Download
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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2011:159
http://www.mandriva.com/security/
_______________________________________________________________________

Package : krb5
Date : October 22, 2011
Affected: 2011.
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities has been found and corrected in krb5:

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 (CVE-2011-1527).

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 (CVE-2011-1528).

The lookup_lockout_policy 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 db2 (aka Berkeley DB) or LDAP back end is used, allows remote
attackers to cause a denial of service (NULL pointer dereference and
daemon crash) via vectors that trigger certain process_as_req errors
(CVE-2011-1529).

The updated packages have been patched to correct these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1527
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1528
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1529
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2011:
cec18dcb661488f6203f1ece61b635d1 2011/i586/krb5-1.9.1-1.1-mdv2011.0.i586.rpm
a4a3f2eee29c35048289de09ecf52ed8 2011/i586/krb5-pkinit-openssl-1.9.1-1.1-mdv2011.0.i586.rpm
5e73f3eb097442260b8b683b48a3497c 2011/i586/krb5-server-1.9.1-1.1-mdv2011.0.i586.rpm
83401420817b2e182d6096a7fab0b4d4 2011/i586/krb5-server-ldap-1.9.1-1.1-mdv2011.0.i586.rpm
8d038ca1ea3baa3862df07b714196e29 2011/i586/krb5-workstation-1.9.1-1.1-mdv2011.0.i586.rpm
666e6590112610d0974c808c18e15857 2011/i586/libkrb53-1.9.1-1.1-mdv2011.0.i586.rpm
822e804be6b1b6c6daf4036e58c8d097 2011/i586/libkrb53-devel-1.9.1-1.1-mdv2011.0.i586.rpm
44b9f82fcf337955b550e2b8279cc319 2011/SRPMS/krb5-1.9.1-1.1.src.rpm

Mandriva Linux 2011/X86_64:
c1a3ce4fed380b27b58fdb5a1de4a225 2011/x86_64/krb5-1.9.1-1.1-mdv2011.0.x86_64.rpm
31abe59dbe968c413e91d9bc8f58cc6f 2011/x86_64/krb5-pkinit-openssl-1.9.1-1.1-mdv2011.0.x86_64.rpm
3978b0e72b6f25f816554cb3f632fbd9 2011/x86_64/krb5-server-1.9.1-1.1-mdv2011.0.x86_64.rpm
03b1d9c2b9ef5a18af5f47e93c7f5b7b 2011/x86_64/krb5-server-ldap-1.9.1-1.1-mdv2011.0.x86_64.rpm
8c9cf44a634d326e5fcc03adad2c673f 2011/x86_64/krb5-workstation-1.9.1-1.1-mdv2011.0.x86_64.rpm
cb1303ca942bc49cfa41e7871dc8ace8 2011/x86_64/lib64krb53-1.9.1-1.1-mdv2011.0.x86_64.rpm
6317fcfa9e3e569645f5a6df6250ce34 2011/x86_64/lib64krb53-devel-1.9.1-1.1-mdv2011.0.x86_64.rpm
44b9f82fcf337955b550e2b8279cc319 2011/SRPMS/krb5-1.9.1-1.1.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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