Date: Fri, 24 May 2013 02:45:05 -0600 From: Kurt Seifried <kseifried@...hat.com> To: Henri Salo <henri@...v.fi> CC: oss-security@...ts.openwall.com, Thomas Pollet <thomas.pollet@...il.com> Subject: Re: plone, rrdtool, zenoss bugs -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/24/2013 01:58 AM, Henri Salo wrote: > On Fri, May 24, 2013 at 01:37:59AM -0600, Kurt Seifried wrote: >> Ho likely is an attacker to be able to pass a format string to it >> though? > > Hard to say how many and which applications are using this library > with user input. At least original reporter pointed out > Zenoss-case. I can find out if there is others if that is needed, > but obviously it's impossible to list all use cases. > > --- Henri Salo > The original reporter never replied =( [ping!] Any ways: > Also, the rrdtool python module crashes on format string exploit $ > python -c "import rrdtool > rrdtool.graph('/tmp/out.png','-f','%n%n')" Segmentation fault > > this module is used by zenoss to create graphs (zenoss users are > able to pass arguments to rrdtool). It just doesn't sound like much of a problem (user logs in, passes some mucky data to rrdtool causing it to crash, the system is fine, that instance of rrdtool dies and gets cleaned up). No real trust boundary gets violated/no DoS in any meaningful way as I understand it. Unless an exploitable scenario comes to light I don't think this is an issue really. - -- Kurt Seifried Red Hat Security Response Team (SRT) PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) iQIcBAEBAgAGBQJRnyiRAAoJEBYNRVNeJnmT08IP/i0atKL21qGjzJ9If/UyK2kT uwSSFJEtwSn9XwwG1qWFeBzlOmijo7Bk0abgQPGPG8x5otnRQQpHz1y002DNNwlM Z9HDRPOgGf6eo7BKKWRw+kdUswokIlqxdkIt6vKfgL96+JztSzSG6YPVdU/ACHAs dprx4Fs3nYsq2y+uUdk7WEmpr4nJygQH8siwNaPQ57cU23BwYuhAqfkkbrvuVJn8 w8AUaAfwXjn6qO5bUuP82RsDvNidtqZXmeRlBQX5IKGoMx9Qn4T+OgB1z9pIR2MG i2uvZzVuma8Ur3P+bApPOnluLFwVxggw45OqGHIK9NO5ANE9vNwTN6TaCLWBXZe8 eysHOgcwZI4/O3bC/nMEZ3MGDi0htFgkuKcVU/CEy47gnSPG+X+kW2sd3r8LKC22 r9h07MycMVtx0ZiYgo0QPvwE1TzFp3LNwTZrJneG3bi5yKMBe44/tzt55S14APKO 0i2TeUyte4vytnRRQHPX+tn0rtjRBKCzL9u7mhShz9ye27HHfiBWE01nqNiH6f7Q aGNl/G/yMhTT0LN14z1sLt/215cRBqD8dOxtiDk8QH4XnCUs3uPVuHWYWXXdl49Y zdjDztqKY/r3a7b9eTv1t+MM4F6CJbztu21c9WYGQovr8ttzSugllHWXw6xSg/Pp AYHNlLaUDdDsUmsQtRrF =jPkc -----END PGP SIGNATURE-----
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