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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
SHA-256 | 07d894e6a7a9e88a8d84a552ceb2b2d8a971a3c2b551994cd04d95e15402b1cc
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
SHA-256 | 2bb2bf931d6ac2e4ccaf6f044d6d84fb55c9289bdf7e1e03c8e0a43d4dd4c549
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
SHA-256 | 62744b0660268ab7130a3287b506316b68daa390f0f7c8054bab6ce99001b83a
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
SHA-256 | 7b528ce4b70a3225550954d57e4772d37c008963e25bab1c29d3738f9ed187b1
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
SHA-256 | 0e007593b67fdfd063439448160fe17d35f352dbb71aa7596e28fe45c721762b
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
SHA-256 | 00dff75f4b4986be32bfa2795735d00bb490a4d893892bef38d5ae41d370d195
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
SHA-256 | 583a1d16957cdf1f031324b91889dc97c740b74cc3658c16852a8bfb19d26197
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
SHA-256 | 08666e7e6b60d6b837a8680a4e05b500d3abb5e40bc34fc37b8233a475928d59
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