MIT Kerberos administration daemon (kadmind) gssrpc__svcauth_unix() buffer overflow

kerberos-gssrpcsvcauthunix-bo (35085)

High Risk

Description:

The MIT Kerberos administration daemon (kadmind) is vulnerable to a stack-based buffer overflow, caused by an integer conversion error in the gssrpc__svcauth_unix() function. By sending a specially-crafted RPC request, a remote attacker could overflow a buffer and execute arbitrary code on the system with root privileges or cause the daemon to crash.

Platforms Affected:

• Apple, Mac OS X 10.3.9
• Apple, Mac OS X 10.4.10
• Apple, Mac OS X Server 10.3.9
• Apple, Mac OS X Server 10.4.10
• Canonical, Ubuntu 6.06 LTS
• Canonical, Ubuntu 6.10
• Canonical, Ubuntu 7.04
• 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 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 3.0
• 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 5-1.5
• MIT, Kerberos 5-1.5.1
• MIT, Kerberos 5-1.5.2
• MIT, Kerberos 5-1.5.3
• MIT, Kerberos 5-1.6
• MIT, Kerberos 5-1.6.1
• Novell, OpenSUSE 10.2
• 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 WS
• RedHat, Enterprise Linux 2.1 AS
• RedHat, Enterprise Linux 2.1 ES
• RedHat, Enterprise Linux 3 Desktop
• RedHat, Enterprise Linux 3 AS
• RedHat, Enterprise Linux 3 ES
• RedHat, Enterprise Linux 3 WS
• RedHat, Enterprise Linux 4 Desktop
• RedHat, Enterprise Linux 4 AS
• RedHat, Enterprise Linux 4 ES
• RedHat, Enterprise Linux 4 WS
• RedHat, Enterprise Linux 5
• RedHat, Enterprise Linux 5 Server
• RedHat, Enterprise Linux 5 Client Workstation
• RedHat, Enterprise Linux 5 Client
• RedHat, Enterprise Linux Desktop 5.0
• RedHat, Linux Advanced Workstation 2.1 Itanium
• SuSE, SLE SDK 10
• SuSE, SuSE SLES 9
• Turbolinux, Turbolinux 10 Desktop
• Turbolinux, Turbolinux 10 F...
• Turbolinux, Turbolinux 10 Server
• Turbolinux, Turbolinux 10 Server x64 Ed
• Turbolinux, Turbolinux 8 Server
• Turbolinux, Turbolinux Home
• Turbolinux, Turbolinux Multimedia
• Turbolinux, Turbolinux Personal
• Turbolinux, Turbolinux Appliance Server 2.0
• VMware, ESX Server 2.0.2
• VMware, ESX Server 2.1.3
• VMware, ESX Server 2.5.3
• VMware, ESX Server 2.5.4
• VMware, ESX Server 3.0.0
• VMware, ESX Server 3.0.1
• VMware, ESX Server 3.0.2

Remedy:

For VMware ESX 3.0.1:
Apply Patch Bundle ESX-1001723, available from the VMware Web site. See References.

For VMware ESX 3.0.0:
Apply Patch Bundle ESX-1001212, available from the VMware Web site. See References.

For VMware ESX 3.0.2:
Apply Patch Bundle ESX-1001731, available from the VMware Web site. See References.

For VMware ESX 2.5.4:
Upgrade to the latest version of VMware ESX (patch 10 Build 53326 or later), available from the VMware Web site. See References.

For VMware ESX 2.5.3:
Upgrade to the latest version of VMware ESX (patch 13 Build 52488 or later), available from the VMware Web site. See References.

For VMware ESX 2.1.3:
Upgrade to the latest version of VMware ESX (patch 8 Build 53228 or later), available from the VMware Web site. See References.

For VMware ESX 2.0.2:
Upgrade to the latest version of VMware ESX (patch 8 Build 52650 or later), available from the VMware Web site. See References.

For Mac OS:
Apply Apple Security Update 2007-007, available from the Apple Web site. See References.

Refer to MITKRB5-SA-2007-004 for patch or upgrade information. See References.

For Red Hat Linux:
Refer to RHSA-2007:0562-2 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux:
Refer to MDKSA-2007:137 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-477-1 for patch, upgrade, or suggested workaround information. See References.

For Novell:
Refer to Novell Security Alert Document ID: 3248163 for patch, upgrade, or suggested workaround information. See References.

For Debian/GNU Linux (krb5):
Refer to DSA-1323-1 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux (MIT Kerberos):
Refer to GLSA 200707-11 for patch, upgrade, or suggested workaround information. See References.

For Turbolinux (krb5):
Refer to TLSA-2007-42 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Gain Access

References:

• Apple Security Update 2007-007 , About Security Update 2007-007 at http://docs.info.apple.com/article.html?artnum=306172.
• Apple Web site, Apple security updates at http://docs.info.apple.com/article.html?artnum=61798.
• BugTraq Mailing List, Tue Jun 26 2007 - 13:01:54 CDT, MITKRB5-SA-2007-004: kadmind multiple RPC lib vulnerabilities at http://archives.neohapsis.com/archives/bugtraq/2007-06/0330.html.
• Full-Disclosure Mailing List, Wed Sep 19 2007 - 21:15:23 CDT, VMSA-2007-0006 Critical security updates for all supported versions of VMware ESX Server, VMware Server, VMware Workstation, VMware ACE, and VMware Player at http://archives.neohapsis.com/archives/fulldisclosure/2007-09/0356.html.
• MITKRB5-SA-2007-004, kadmind affected by multiple RPC library vulnerabilities at http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2007-004.txt.
• Novell Security Alert Document ID: 3248163, Security Vulnerability: kadmind affected by multiple RPC library vulnerabilities at https://secure-support.novell.com/KanisaPlatform/Publishing/773/3248163_f.SAL_Public.html.
• VMware Security-announce Mailing list, Wed Sep 19 19:15:23 PDT 2007, VMSA-2007-0006 Critical security updates for all supported versions of VMware ESX Server, VMware Server, VMware Workstation, VMware ACE, and VMware Player at http://lists.vmware.com/pipermail/security-announce/2007/000001.html.
• VMware, Inc. Web site, Download Patch ESX-1001731 for VMware ESX Server 3.0.2 at http://www.vmware.com/support/vi3/doc/esx-1001731-patch.html.
• VMware, Inc. Web site, Download Patch ESX-1001723 for VMware ESX Server 3.0.1 at http://www.vmware.com/support/vi3/doc/esx-1001723-patch.html.
• VMware, Inc. Web site, VMware ESX Server Download Archive at http://www.vmware.com/download/.
• VMware, Inc. Web site, Download Patch ESX-1001212 for VMware ESX Server 3.0.0 at http://www.vmware.com/support/vi3/doc/esx-1001212-patch.html.
• ASA-2007-289: krb5 security update (RHSA-2007-0384)
• ASA-2007-294: krb5 security update (RHSA-2007-0562)
• BID-24657: MIT Kerberos 5 KAdminD Server RPC Type Conversion Stack Buffer Overflow Vulnerability
• BID-25159: Apple Mac OS X 2007-007 Multiple Security Vulnerabilities
• CVE-2007-2443: Integer signedness error in the gssrpc__svcauth_unix function in svc_auth_unix.c in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote attackers to execute arbitrary code via a negative length value.
• DSA-1323: krb5 -- several vulnerabilities
• GLSA-200707-11: MIT Kerberos 5: Arbitrary remote code execution
• MDKSA-2007:137: Updated krb5 packages fix vulnerabilities
• RHSA-2007-0384: Critical: krb5 security update
• RHSA-2007-0562: Important: krb5 security update
• SA25800: Kerberos Multiple Vulnerabilities
• SA26033: Novell Kerberos KDC Multiple Vulnerabilities
• SA26235: Mac OS X Security Update Fixes Multiple Vulnerabilities
• SA26909: VMware ESX Server Multiple Security Updates
• SECTRACK ID: 1018293: Kerberos kadmind RPC Library Bugs May Let Remote Users Execute Arbitrary Code
• SUSE-SA:2007:038: krb5 security problems

Reported:

Jun 26, 2007

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page