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Date: Thu, 22 Dec 2011 08:44:43 -0700
From: Kurt Seifried <>
CC: Jan Lieskovsky <>,
        "Steven M. Christey" <>,
        Rainer Gerhards <>,
        Tomas Heinrich <>
Subject: Re: CVE Request -- rsyslog -- DoS due integer signedness
 error while extending rsyslog counted string buffer

On 12/22/2011 05:19 AM, Jan Lieskovsky wrote:
> An integer signedness error, leading to heap based buffer overflow was 
> found in
> the way the imfile module of rsyslog, an enhanced system logging and 
> kernel
> message trapping daemon, processed text files larger than 64 KB. When the
> imfile rsyslog module was enabled, a local attacker could use this 
> flaw to
> cause denial of service (rsyslogd daemon hang) via specially-crafted 
> message,
> to be logged.
> Upstream bug report:
> [1]
> Upstream patch:
> [2] 
> References:
> [3]
> Could you allocate a CVE id for this?
> Thank you && Regards, Jan.
> -- 
> Jan iankko Lieskovsky / Red Hat Security Response Team
Please use CVE-2011-4623 for this issue.


-Kurt Seifried / Red Hat Security Response Team

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