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Category:   Application (File Transfer/Sharing)  >   Samba Vendors:   Samba.org
Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
SecurityTracker Alert ID:  1037495
SecurityTracker URL:  http://securitytracker.com/id/1037495
CVE Reference:   CVE-2016-2126   (Links to External Site)
Date:  Dec 19 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.0.0 - 4.5.2
Description:   A vulnerability was reported in Samba. A remote authenticated user can cause the target service to crash.

A remote authenticated user can send a specially crafted Privilege Attribute Certificate (PAC) to trigger an overflow and cause the target winbindd service to crash.

Volker Lendecke reported this vulnerability.

Impact:   A remote authenticated user can cause the target service to crash.
Solution:   The vendor has issued a fix (4.3.13, 4.4.8, 4.5.3).

The vendor advisory is available at:

https://www.samba.org/samba/security/CVE-2016-2123.html

Vendor URL:  www.samba.org/samba/security/CVE-2016-2126.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Dec 19 2016 (Ubuntu Issues Fix) Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS, 14.04 LTS, 16.04 LTS, and 16.10.
Mar 21 2017 (Red Hat Issues Fix) Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Mar 21 2017 (Red Hat Issues Fix) Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
Red Hat has issued a fix for samba4 for Red Hat Enterprise Linux 6.
Mar 27 2017 (Red Hat Issues Fix for Red Hat Gluster Storage) Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
Red Hat has issued a fix for Red Hat Gluster Storage for Red Hat Enterprise Linux 6.
Mar 28 2017 (Oracle Issues Fix for Oracle Linux) Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
Oracle has issued a fix for samba4 for Oracle Linux 6.
May 22 2017 (Red Hat Issues Fix) Samba Lets Remote Authenticated Users Cause the Target 'winbindd' Service to Crash
Red Hat has issued a fix for Red Hat Enterprise Linux 7.



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