Signature Detail

APP: Kerberos Heap Double Free

This signature detects attempts to exploit a known "double free" vulnerability in the Kerberos protocol. A successful attack can lead to remote arbitrary code execution. Note: this signature should not be utilized on a network running Kerberos 5 1.1 or higher.

Extended Description

MIT Kerberos 5 is prone to a remote double-free vulnerability. Remote attackers can trigger this issue prior to any authentication whatsoever. The issue exists in the 'revcauth_common()' helper function. Because of the code path taken in the vulnerable function, exploitation may be hindered. However, attackers may presumably leverage this issue to execute arbitrary code in the context of the affected service. Note that successful exploitation of this issue on a Kerberos Key Distribution Center (KDC) computer may result in the compromise of an entire Kerberos realm.

Affected Products

• Apple Mac OS X 10.4.2
• Apple Mac OS X Server 10.4.2
• Conectiva Linux 10.0.0
• Conectiva Linux 9.0.0
• Debian Linux 3.0.0
• Debian Linux 3.0.0 Alpha
• Debian Linux 3.0.0 Arm
• Debian Linux 3.0.0 Hppa
• Debian Linux 3.0.0 Ia-32
• Debian Linux 3.0.0 Ia-64
• Debian Linux 3.0.0 M68k
• Debian Linux 3.0.0 Mips
• Debian Linux 3.0.0 Mipsel
• Debian Linux 3.0.0 Ppc
• Debian Linux 3.0.0 S/390
• Debian Linux 3.0.0 Sparc
• Debian Linux 3.1.0
• Debian Linux 3.1.0 Alpha
• Debian Linux 3.1.0 Amd64
• Debian Linux 3.1.0 Arm
• Debian Linux 3.1.0 Hppa
• Debian Linux 3.1.0 Ia-32
• Debian Linux 3.1.0 Ia-64
• Debian Linux 3.1.0 M68k
• Debian Linux 3.1.0 Mips
• Debian Linux 3.1.0 Mipsel
• Debian Linux 3.1.0 Ppc
• Debian Linux 3.1.0 S/390
• Debian Linux 3.1.0 Sparc
• Gentoo Linux
• HP HP-UX B.11.00
• HP HP-UX B.11.11
• HP HP-UX B.11.23
• Mandriva Corporate Server 2.1.0
• Mandriva Corporate Server 2.1.0 X86 64
• Mandriva Corporate Server 3.0.0
• Mandriva Corporate Server 3.0.0 X86 64
• Mandriva Linux Mandrake 10.0.0
• Mandriva Linux Mandrake 10.0.0 amd64
• Mandriva Linux Mandrake 10.1.0
• Mandriva Linux Mandrake 10.1.0 X86 64
• Mandriva Linux Mandrake 10.2.0
• Mandriva Linux Mandrake 10.2.0 X86 64
• Mandriva Multi Network Firewall 2.0.0
• MIT Kerberos 5 5.0.0 -1.0.X
• MIT Kerberos 5 5.0.0 -1.1
• MIT Kerberos 5 5.0.0 -1.1.1
• MIT Kerberos 5 5.0.0 -1.2Beta1
• MIT Kerberos 5 5.0.0 -1.2Beta2
• MIT Kerberos 5 5.0.0 -1.3.3
• MIT Kerberos 5 5.0.0 -1.3.4
• MIT Kerberos 5 5.0.0 -1.3.5
• MIT Kerberos 5 5.0.0 -1.3.6
• MIT Kerberos 5 5.0.0 -1.4
• MIT Kerberos 5 5.0.0 -1.4.1
• Red Hat Advanced Workstation for the Itanium Processor 2.1.0
• Red Hat Advanced Workstation for the Itanium Processor 2.1.0 IA64
• Red Hat Desktop 3.0.0
• Red Hat Enterprise Linux AS 2.1
• Red Hat Enterprise Linux AS 2.1 IA64
• Red Hat Enterprise Linux AS 3
• Red Hat Enterprise Linux ES 2.1
• Red Hat Enterprise Linux ES 2.1 IA64
• Red Hat Enterprise Linux ES 3
• Red Hat Enterprise Linux WS 2.1
• Red Hat Enterprise Linux WS 2.1 IA64
• Red Hat Enterprise Linux WS 3
• Red Hat Fedora Core3
• Red Hat Fedora Core4
• SGI ProPack 3.0.0 SP6
• Sun SEAM 1.0.0
• Sun Solaris 10 Sparc
• Sun Solaris 10 X86
• Sun Solaris 8 Sparc
• Sun Solaris 8 X86
• Sun Solaris 9 Sparc
• Sun Solaris 9 X86
• Sun Solaris 9 X86 Update 2
• SuSE Linux Personal 9.3.0
• SuSE Linux Personal 9.3.0 X86 64
• SuSE Linux Professional 9.3.0
• SuSE Linux Professional 9.3.0 X86 64
• Trustix Secure Enterprise Linux 2.0.0
• Trustix Secure Linux 2.2.0
• Trustix Secure Linux 3.0.0
• Turbolinux Appliance Server 1.0.0 Hosting Edition
• Turbolinux Appliance Server 1.0.0 Workgroup Edition
• Turbolinux Home
• Turbolinux Turbolinux Desktop 10.0.0
• Turbolinux Turbolinux Server 10.0.0
• Turbolinux Turbolinux Server 8.0.0
• Ubuntu Ubuntu Linux 4.1.0 Ia32
• Ubuntu Ubuntu Linux 4.1.0 Ia64
• Ubuntu Ubuntu Linux 4.1.0 Ppc
• Ubuntu Ubuntu Linux 5.0.0 4 Amd64
• Ubuntu Ubuntu Linux 5.0.0 4 I386
• Ubuntu Ubuntu Linux 5.0.0 4 Powerpc

References

• BugTraq: 14239
• CVE: CVE-2005-1689
• URL: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-003-recvauth.txt
• URL: http://www.kb.cert.org/vuls/id/623332