Mandriva Linux Security Advisory 2010-005 - The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. The asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5 (aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to cause a denial of service (application crash) via a crafted length value that triggers an erroneous malloc call, related to incorrect calculations with pointer arithmetic. The updated packages have been patched to correct these issues.
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Mandriva Linux Security Advisory 2009-098 - Multiple vulnerabilities has been found and corrected in krb5. The updated packages have been patched to correct these issues. Packages for 2008.0 are being provided due to extended support for Corporate products.
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HP Security Bulletin - Potential security vulnerabilities have been identified on HP-UX running Kerberos. These vulnerabilities could be exploited by remote unauthenticated users to create a Denial of Service (DoS) or to execute arbitrary code.
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Mandriva Linux Security Advisory 2009-098 - The MIT Kerberos 5 package suffers from denial of service and code execution vulnerabilities.
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Debian Security Advisory 1766-1 - Several vulnerabilities have been found in the MIT reference implementation of Kerberos V5, a system for authenticating users and services on a network.
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Gentoo Linux Security Advisory GLSA 200904-09 - Multiple vulnerabilites in MIT Kerberos 5 might allow remote unauthenticated users to execute arbitrary code with root privileges. Versions less than 1.6.3-r6 are affected.
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SUSE Security Announcement - The Kerberos implementation from MIT is vulnerable to four different security issues that range from a remote crash to to possible, but very unlikely, remote code execution.
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Ubuntu Security Notice USN-755-1 - Multiple flaws were discovered in the Kerberos GSS-API and ASN.1 routines that did not correctly handle certain requests. An unauthenticated remote attacker could send specially crafted traffic to crash services using the Kerberos library, leading to a denial of service.
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MIT krb5 Security Advisory 2009-001 - The MIT krb5 implementation of the SPNEGO GSS-API mechanism can read beyond the end of a network input buffer. This can cause a GSS-API application to crash by reading from invalid address space. The MIT krb5 implementation of the SPNEGO GSS-API mechanism can dereference a null pointer under error conditions. This can cause a GSS-API application to crash. MIT krb5 can perform an incorrect length check inside an ASN.1 decoder. This only presents a problem in the PK-INIT code paths. In the MIT krb5 KDC or kinit program, this could lead to spurious malloc() failures or, under some conditions, program crash.
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