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CVE-2011-1530

Status Candidate

Overview

The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error.

Related Files

Gentoo Linux Security Advisory 201201-13
Posted Jan 24, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201201-13 - Multiple vulnerabilities have been found in MIT Kerberos 5, the most severe of which may allow remote execution of arbitrary code. Versions less than 1.9.2-r1 are affected.

tags | advisory, remote, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2009-3295, CVE-2009-4212, CVE-2010-0283, CVE-2010-0629, CVE-2010-1320, CVE-2010-1321, CVE-2010-1322, CVE-2010-1323, CVE-2010-1324, CVE-2010-4020, CVE-2010-4021, CVE-2010-4022, CVE-2011-0281, CVE-2011-0282, CVE-2011-0283, CVE-2011-0284, CVE-2011-0285, CVE-2011-1527, CVE-2011-1528, CVE-2011-1529, CVE-2011-1530, CVE-2011-4151
MD5 | 2ae92c1cf6aa850675b9c489b3eb7e1f
Mandriva Linux Security Advisory 2011-184
Posted Dec 12, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-184 - The process_tgs_req function in do_tgs_req.c in the Key Distribution Center 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error. The updated packages have been patched to correct this issue.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2011-1530
MD5 | ea10a4b8eec8cf78c9936bc96b71e588
Ubuntu Security Notice USN-1290-1
Posted Dec 8, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1290-1 - Simo Sorce discovered that a NULL pointer dereference existed in the Kerberos Key Distribution Center (KDC). An authenticated remote attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2011-1530
MD5 | 95b29ebd0da8bcbab37c686508c04933
MIT krb5 Security Advisory 2011-007
Posted Dec 7, 2011
Site web.mit.edu

MIT krb5 Security Advisory 2011-007 - In releases krb5-1.9 and later, the KDC can crash due to a null pointer dereference in code that handles TGS (Ticket Granting Service) requests. The trigger condition is trivial to produce using unmodified client software, but requires the ability to authenticate as a principal in the KDC's realm.

tags | advisory
advisories | CVE-2011-1530
MD5 | 614c7cc28b08b1065af0dd1d570d54ea
Red Hat Security Advisory 2011-1790-01
Posted Dec 7, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1790-01 - Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center. A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed certain TGS requests. A remote, authenticated attacker could use this flaw to crash the KDC via a specially-crafted TGS request.

tags | advisory, remote
systems | linux, redhat
advisories | CVE-2011-1530
MD5 | 69587c83c55c1af9dfeda841b15634d3
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