Date: Sat, 19 May 2012 21:20:36 +0200 From: <fabrice.fontaine@...nge.com> To: <henri@...v.fi>, <touko.korpela@....fi> Cc: <oss-security@...ts.openwall.com> Subject: RE: libupnp buffer overflows You can find the list of source code commits for the 1.6.16 here: http://pupnp.git.sourceforge.net/git/gitweb.cgi?p=pupnp/pupnp;a=log;h=01d7c05fb882bb1904f5022a33eef8a68d8b8bdc. Moreover, the most important bug fixes have been added in the tracker: http://sourceforge.net/tracker/?atid=841026&group_id=166957&func=browse. To sum up, most of the issues were about memory leaks (http://sourceforge.net/tracker/?func=detail&aid=3497009&group_id=166957&atid=841026), a few of them were about security like an out of bound access (http://sourceforge.net/tracker/?func=detail&aid=3496933&group_id=166957&atid=841026, classified as CWE-119 by Coverity). However, most of the other "security" changes have been made to: - replace strcpy or sprint by strncpy or snprintf as using sprintf is seen as a defect by coverity (CWE-676) - remove implicit integer conversion between unsigned and signed (seen as CWE-681 by Coverity) Best Regards, Fabrice -----Message d'origine----- De : Henri Salo [mailto:henri@...v.fi] Envoyé : samedi 19 mai 2012 20:47 À : Touko Korpela Cc : FONTAINE Fabrice RD-MAPS-REN; oss-security@...ts.openwall.com Objet : Re: libupnp buffer overflows On Fri, May 18, 2012 at 10:22:52PM +0300, Touko Korpela wrote: > On Fri, May 18, 2012 at 08:43:52PM +0200, Florian Weimer wrote: > > * Touko Korpela: > > > > > Upstream changelog for libupnp (/usr/share/doc/libupnp6/changelog.gz) lists > > > many fixes for buffer overflows in version 1.6.16. Should this be added to > > > tracker and check if CVE number is allocated? > > > > It seems that the list of issues is fairly long. Have you got a list > > of source code commits? > > Unfortunately, no. I only noticed this from the changelog. > Maybe maintainer and/or upstream can tell if this can be exploited. Fabrice replied: """ Those issues were found by Coverity (http://www.coverity.com). Coverity affects CWE identifiers like CWE-170 but I haven't kept the CWE identifiers of all the fixed bugs. """ Did you Fabrice verify if these had security impact? I can try to help if needed. - Henri Salo
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