oss-security - Re: CVE Request -- rsyslog -- DoS due integer signedness error while extending rsyslog counted string buffer

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Message-ID: <4EF3670A.5030007@redhat.com>
Date: Thu, 22 Dec 2011 18:21:14 +0100
From: Jan Lieskovsky <jlieskov@...hat.com>
To: oss-security@...ts.openwall.com
CC: Kyle Creyts <kyle.creyts@...il.com>
Subject: Re: CVE Request -- rsyslog -- DoS due integer signedness
 error while extending rsyslog counted string buffer


Hi Kyle,

On 12/22/2011 05:00 PM, Kyle Creyts wrote:
> This only applies when imfile is enabled, however, correct?

Yes, this issue requires the imfile rsyslog module to be enabled.

Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

> On Dec 22, 2011 7:20 AM, "Jan Lieskovsky"<jlieskov@...hat.com>  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] http://bugzilla.adiscon.com/**show_bug.cgi?id=221<http://bugzilla.adiscon.com/show_bug.cgi?id=221>
>>
>> Upstream patch:
>> [2] http://git.adiscon.com/?p=**rsyslog.git;a=commit;h=**
>> 6bad782f154b7f838c7371bf99c13f**6dc4ec4101<http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101>
>>
>> References:
>> [3] https://bugzilla.redhat.com/**show_bug.cgi?id=769822<https://bugzilla.redhat.com/show_bug.cgi?id=769822>
>>
>> Could you allocate a CVE id for this?
>>
>> Thank you&&  Regards, Jan.
>> --
>> Jan iankko Lieskovsky / Red Hat Security Response Team
>>
>

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