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Category:   Application (Generic)  >   rsyslog Vendors:   rsyslog.com
rsyslog imfile Integer Signedness Error Lets Local Users Deny Service
SecurityTracker Alert ID:  1026556
SecurityTracker URL:  http://securitytracker.com/id/1026556
CVE Reference:   CVE-2011-4623   (Links to External Site)
Date:  Jan 23 2012
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.6.5 and prior versions
Description:   A vulnerability was reported in rsyslog. A local user can cause denial of service conditions.

A local user can cause supply a specially crafted message to be logged to trigger an integer signedness error and resulting heap overflow and cause rsyslog to crash.

Systems with the imfile rsyslog module enabled are affected.

Peter Eisentraut reported this vulnerability.

Impact:   A local user can cause rsyslog to crash.
Solution:   The vendor has issued a fix (4.6.6).

The vendor has also issued a source code fix, available at:

http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101

Vendor URL:  rsyslog.com/ (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.
Jan 23 2012 (Ubuntu Issues Fix) rsyslog imfile Integer Signedness Error Lets Local Users Deny Service
Ubuntu has issued a fix for Ubuntu 11.04.



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