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Category:   OS (Linux)  >   Linux Kernel Vendors:
Linux Kernel Session Keyring Bug in copy_creds() Lets Local Users Deny Service
SecurityTracker Alert ID:  1027236
SecurityTracker URL:
CVE Reference:   CVE-2012-2745   (Links to External Site)
Date:  Jul 10 2012
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.6.x
Description:   A vulnerability was reported in the Linux Kernel. A local user can cause denial of service conditions.

A local user can exploit a flaw in the copy_creds() function in the management of replacement session keyrings and cause the target system to crash.

Impact:   A local user can cause the target system to crash.
Solution:   The vendor has issued a source code fix, available at:;a=commit;h=79549c6dfda0603dba9a70a53467ce62d9335c33

Vendor URL: (Links to External Site)
Cause:   State error
Underlying OS:  

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 10 2012 (Red Hat Issues Fix) Linux Kernel Session Keyring Bug in copy_creds() Lets Local Users Deny Service   (
Red Hat has issued a fix for Red Hat Enterprise Linux 6.

 Source Message Contents

[Original Message Not Available for Viewing]

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