oss-sec mailing list archives

Re: Re: libxml security fix from apple ... any information?


From: Thomas Biege <thomas () suse de>
Date: Fri, 29 Jul 2011 09:52:41 +0200


Hello,
if the code executed is the same on Windows and on Linux I would assume
this affects Linux too. That the bug is not "seen" during fuzzing
means nothing.

Cheers,
Thomas

Am Freitag, 29. Juli 2011, 06:59:22 schrieb Billy Rios:
The crash was indeed in libxml2, but I could not get the bug to repro in
Linux.  We took the crash file and fuzzed a bit more on Linux, but no
crashes were observed.

BK


On Thu, Jul 28, 2011 at 6:22 AM, Marcus Meissner <meissner () suse de> wrote:

Hi folks, Billy, Daniel,

On
http://support.apple.com/kb/HT4808
there is a libxml security issue listed:

-----------------------------------------
libxml

Available for: Windows 7, Vista, XP SP2 or later

Impact: Visiting a maliciously crafted website may lead to an unexpected
application termination or arbitrary code execution

Description: A one-byte heap buffer overflow existed in libxml's handling
of XML data. Visiting a maliciously crafted website may lead to an
unexpected application termination or arbitrary code execution.

CVE-ID

CVE-2011-0216 : Billy Rios of the Google Security Team
-----------------------------------------

I suspect this is libxml2 and it likely also affects Linux?

If this is correct, could you identify the commit fixing this issue?

Ciao, Marcus




-- 
Thomas Biege <thomas () suse de>, SUSE LINUX, Security Support & Auditing
SUSE LINUX GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg
--
  Wer aufhoert besser werden zu wollen, hoert auf gut zu sein.
                            -- Marie von Ebner-Eschenbach


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