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Category:   Application (Generic)  >   rsyslog Vendors:
(Ubuntu Issues Fix) rsyslog imfile Integer Signedness Error Lets Local Users Deny Service
SecurityTracker Alert ID:  1026560
SecurityTracker URL:
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:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  11.04

Message History:   This archive entry is a follow-up to the message listed below.
Jan 23 2012 rsyslog imfile Integer Signedness Error Lets Local Users Deny Service

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