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Category:   Application (Security)  >   Kerberos Vendors:   MIT
Kerberos Kadmind Null Pointer Dereference in process_db_args() Lets Remote Authenticated Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1035399
SecurityTracker URL:  http://securitytracker.com/id/1035399
CVE Reference:   CVE-2016-3119   (Links to External Site)
Date:  Mar 24 2016
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Kerberos. A remote authenticated user can execute arbitrary code on the target system.

A remote authenticated user can send a specially crafted modify_principal command with an empty DB argument to trigger a null pointer dereference in process_db_args() and execute arbitrary code on the target system.

Systems configured to use the LDAP Kerberos data interface module are affected.

Impact:   A remote authenticated user can execute arbitrary code on the target system.
Solution:   The vendor has issued a source code fix, available at:

https://github.com/krb5/krb5/commit/08c642c09c38a9c6454ab43a9b53b2a89b9eef99

Vendor URL:  web.mit.edu/kerberos/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 4 2016 (Red Hat Issues Fix) Kerberos Kadmind Null Pointer Dereference in process_db_args() Lets Remote Authenticated Users Execute Arbitrary Code on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 7.



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