MIT Kerberos 5 (krb5) KDC (krb5kdc) code execution

krb5-kdc-code-execution (41275) The risk level is classified as HighHigh Risk

Description:

MIT Kerberos 5 (krb5) could allow a remote attacker to execute arbitrary code on the system, caused by a NULL pointer dereference or a double-free error in KDC (krb5kdc) when global variables are not set for certain krb4 message types. By sending a specially-crafted krb4 message, an attacker could execute arbitrary code with elevated privileges, obtain sensitive information, or cause the service to crash.

Platforms Affected:

  • Apple, Mac OS X 10.4.11
  • Apple, Mac OS X 10.5.2
  • Apple, Mac OS X Server 10.4.11
  • Apple, Mac OS X Server 10.5.2
  • Canonical, Ubuntu 6.06 LTS
  • Canonical, Ubuntu 6.10
  • Canonical, Ubuntu 7.04
  • Canonical, Ubuntu 7.10
  • Debian, Debian Linux 3.1
  • Debian, Debian Linux 4.0
  • Gentoo, Linux
  • MandrakeSoft, Mandrake Linux 2007 X86_64
  • MandrakeSoft, Mandrake Linux 2007
  • MandrakeSoft, Mandrake Linux 2007.1 X86_64
  • MandrakeSoft, Mandrake Linux 2007.1
  • MandrakeSoft, Mandrake Linux 2008.0
  • MandrakeSoft, Mandrake Linux 2008.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0
  • MandrakeSoft, Mandrake Multi Network Firewall 2.0
  • MIT, Kerberos 5-1.6.3
  • Novell, Linux Desktop 9
  • Novell, OpenSUSE 10.2
  • Novell, OpenSUSE 10.3
  • Novell, SLE SDK 10 SP1
  • Novell, SUSE Linux Enterprise Desktop 10 SP1
  • Novell, SUSE Linux Enterprise Server 10 SP1
  • Novell, SUSE Linux Enterprise Server 10
  • RedHat, Enterprise Linux 2.1 AS
  • RedHat, Enterprise Linux 2.1 ES
  • RedHat, Enterprise Linux 2.1 WS
  • RedHat, Enterprise Linux 3 Desktop
  • RedHat, Enterprise Linux 3 WS
  • RedHat, Enterprise Linux 3 AS
  • RedHat, Enterprise Linux 3 ES
  • RedHat, Enterprise Linux 4 AS
  • RedHat, Enterprise Linux 4 ES
  • RedHat, Enterprise Linux 4 WS
  • RedHat, Enterprise Linux 4 Desktop
  • RedHat, Enterprise Linux 4.5.z AS
  • RedHat, Enterprise Linux 4.5.z ES
  • RedHat, Enterprise Linux 5 Client Workstation
  • RedHat, Enterprise Linux 5 Client
  • RedHat, Enterprise Linux 5
  • RedHat, Linux Advanced Workstation 2.1 Itanium
  • SuSE, SLE SDK 10
  • Turbolinux, Turbolinux 11 Server
  • Turbolinux, Turbolinux 11 Server x64 Ed
  • VMware, ACE 2.0
  • VMware, ACE 2.0.1
  • VMware, ACE 2.0.2
  • VMware, ACE 2.0.3
  • VMware, ESX Server 3.5
  • VMware, ESXi Server 3.5
  • VMware, Fusion 1.0
  • VMware, Fusion 1.1
  • VMware, Fusion 1.1.1
  • VMware, Player 2.0
  • VMware, Player 2.0.1
  • VMware, Player 2.0.2
  • VMware, Player 2.0.3
  • VMware, Server 1.0
  • VMware, Server 1.0.1
  • VMware, Server 1.0.2
  • VMware, Server 1.0.3
  • VMware, Server 1.0.4
  • VMware, Server 1.0.5
  • VMware, Workstation 6.0
  • VMware, Workstation 6.0.1
  • VMware, Workstation 6.0.2
  • VMware, Workstation 6.0.3

Remedy:

Refer to MIT krb5 Security Advisory 2008-001 for patch, upgrade or suggested workaround information. See References.

For Mac OS X:
Apply Security Update 2008-002, available from the Apple Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

Consequences:

Gain Access

References:

Reported:

Mar 18, 2008

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For corrections or additions please email xforce@iss.net

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