Date: Tue, 14 Apr 2015 14:08:07 -0700 From: Tavis Ormandy <taviso@...gle.com> To: oss-security@...ts.openwall.com Cc: Assign a CVE Identifier <cve-assign@...re.org> Subject: Re: Re: Problems in automatic crash analysis frameworks On Tue, Apr 14, 2015 at 1:35 PM, Tavis Ormandy <taviso@...gle.com> wrote: > On Tue, Apr 14, 2015 at 9:02 AM, Marc Deslauriers > <marc.deslauriers@...onical.com> wrote: >> Hi, >> >> On 2015-04-14 11:55 AM, cve-assign@...re.org wrote: >>> This is mostly a question for the persons who assigned CVE-2015-1318 >>> and CVE-2015-1862. Should these CVE assignments be interpreted to >>> mean: >>> >>> CVE-2015-1318 - in Apport, an unprivileged user can use a >>> namespace-based attack because there is an execve by >>> root after a chroot into a user-specified directory >> >> Yes, I assigned CVE-2015-1318 to that specific issue in Apport. >> >> Marc. > > It looks like this is the patch for Apport: > > http://bazaar.launchpad.net/~apport-hackers/apport/trunk/revision/2943#data/apport > > It's far more complicated than I expected, and not obviously correct. > It could probably use some review, I'll think about it today. > > Tavis. Wait, my first thought is that it's not obvious to me that /proc/net/unix is guaranteed to be newline delimited, newline is a perfectly valid name in a filename, no? >>> import socket >>> socket.socket(socket.AF_UNIX, socket.SOCK_STREAM).bind('test\ntest') >>> sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) >>> sock.bind('/tmp/foo\nbar') >>> sock.listen(1) $ grep -A1 foo /proc/net/unix 0000000000000000: 00000002 00000000 00010000 0001 01 4772228 /tmp/foo bar
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