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Category:   Application (Security)  >   Kerberos Vendors:   MIT
(Sun Issues Fix for Solaris) Kerberos kadmind RPC Library Bugs May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1018330
SecurityTracker URL:  http://securitytracker.com/id/1018330
CVE Reference:   CVE-2007-2442, CVE-2007-2443   (Links to External Site)
Date:  Jul 3 2007
Impact:   Denial of service via network, Execution of arbitrary code via network, Root access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5-1.6.1 and prior versions
Description:   A vulnerability was reported in Kerberos. A remote user may be able to execute arbitrary code on the target system.

A remote user can send specially crafted data to cause the gssrpc__svcauth_gssapi() function in 'src/lib/rpc/svc_auth_gssapi.c' to attempt to free an uninitialized 'creds' parameter [CVE-2007-2442]. This may allow the remote user to execute arbitrary code on the target system with the privileges of the target service (root privileges), or to crash the target service.

A remote user can send specially crafted data to cause the gssrpc__svcauth_unix() function in 'src/lib/rpc/svc_auth_unix.c' to potentially execute arbitrary code.

MIT credits Wei Wang of McAfee Avert Labs with discovering these vulnerabilities.

Impact:   A remote user may be able to execute arbitrary code on the target system.

A remote user can cause denial of service conditions.

Solution:   Sun has issued the following fixes.

SPARC Platform

* Solaris 8 with patch 126928-01 or later
* Solaris 9 with patch 113318-31 or later
* Solaris 10 with patch 123809-02 or later

x86 Platform

* Solaris 8 without patch 126929-01 or later
* Solaris 9 with patch 117468-17 or later
* Solaris 10 with patch 126837-01 or later

The Sun advisory is available at:

http://sunsolve.sun.com/search/document.do?assetkey=1-26-102914-1

Vendor URL:  web.mit.edu/kerberos/advisories/MITKRB5-SA-2007-004.txt (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (Solaris - SunOS)
Underlying OS Comments:  8, 9, 10

Message History:   This archive entry is a follow-up to the message listed below.
Jun 26 2007 Kerberos kadmind RPC Library Bugs May Let Remote Users Execute Arbitrary Code



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