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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Flaw in CIFS CIFSSMBWrite() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1024285
SecurityTracker URL:  http://securitytracker.com/id/1024285
CVE Reference:   CVE-2010-2248   (Links to External Site)
Date:  Aug 6 2010
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.6.34-rc4
Description:   A vulnerability was reported in the Linux Kernel. A remote user can cause denial of service conditions.

A remote server can send a specially crafted SMB packet in response to a connected client to trigger a flaw in the CIFSSMBWrite() function to trigger a kernel panic on the target system.

Impact:   A remote user can cause a kernel panic on the target system.
Solution:   The vendor has issued a fix (2.6.34-rc4).

The source code fix is available at:

http://git.kernel.org/linus/6513a81e9325d712f1bfb9a1d7b750134e49ff18

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   State error
Underlying OS:  

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 6 2010 (Red Hat Issues Fix) Linux Kernel Flaw in CIFS CIFSSMBWrite() Lets Remote Users Deny Service   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 4.
Aug 10 2010 (Red Hat Issues Fix) Linux Kernel Flaw in CIFS CIFSSMBWrite() Lets Remote Users Deny Service   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Aug 17 2010 (Red Hat Issues Fix) Linux Kernel Flaw in CIFS CIFSSMBWrite() Lets Remote Users Deny Service   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise MRG 1.2.



 Source Message Contents

Date:  Thu, 05 Aug 2010 22:51:16 +0000
Subject:  Linux Kernel


* a flaw was found in the CIFSSMBWrite() function in the Linux kernel
Common Internet File System (CIFS) implementation. A remote attacker could
send a specially-crafted SMB response packet to a target CIFS client,
resulting in a kernel panic (denial of service). (CVE-2010-2248, Important)

http://git.kernel.org/linus/6513a81e9325d712f1bfb9a1d7b750134e49ff18


 
 


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