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CVE-2009-0845

Status Candidate

Overview

The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.

Related Files

VMware Security Advisory 2010-0016
Posted Nov 16, 2010
Authored by VMware | Site vmware.com

VMware Security Advisory 2010-0016 - This patch updates the service console kernel to fix multiple security issues. Updates to the likewisekrb5, likewiseopenldap, likewiseopen, and pamkrb5 packages address several security issues.

tags | advisory, kernel
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-4212, CVE-2010-0291, CVE-2010-0307, CVE-2010-0415, CVE-2010-0622, CVE-2010-1087, CVE-2010-1088, CVE-2010-1321, CVE-2010-1437
MD5 | 74b7e8b6045091abb7e0864a2e1443ef
Mandriva Linux Security Advisory 2009-098
Posted Dec 8, 2009
Authored by Mandriva | Site mandriva.com

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.

tags | advisory, vulnerability
systems | linux, mandriva
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-0847
MD5 | 0ef5f2688ffb40c70f348b36c3cbd84f
Debian Linux Security Advisory 1766-1
Posted Apr 9, 2009
Authored by Debian | Site debian.org

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.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0847, CVE-2009-0846
MD5 | 00c33955f1f23d765fefe892fab83085
Gentoo Linux Security Advisory 200904-9
Posted Apr 8, 2009
Authored by Gentoo | Site security.gentoo.org

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.

tags | advisory, remote, arbitrary, root
systems | linux, gentoo
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-0847
MD5 | 8a7e34a777d44530639d4f9a00bf7620
SUSE Security Announcement 2009-019
Posted Apr 8, 2009
Site suse.com

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.

tags | advisory, remote, code execution
systems | linux, suse
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-0847
MD5 | fea5f5d965b0e9bd0ddfab127c979297
Ubuntu Security Notice 755-1
Posted Apr 8, 2009
Authored by Ubuntu | Site security.ubuntu.com

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.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-0847
MD5 | f6e818ad1ad93b2738a3aeeb21d175ab
MIT krb5 Security Advisory 2009-001
Posted Apr 7, 2009
Site web.mit.edu

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.

tags | advisory
advisories | CVE-2009-0844, CVE-2009-0845, CVE-2009-0847
MD5 | ac63a0de02f68562667db69a506c5820
Mandriva Linux Security Advisory 2009-082
Posted Mar 30, 2009
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2009-082 - The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token. This update provides the fix for that security issue.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2009-0845
MD5 | a6693111b5be52a33f29b63b1518e35e
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