Date: Tue, 30 Aug 2011 15:28:49 -0400 (EDT) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: security@...ntu.com, geoff@...ttered.org, dwyer@...lab.ee.mu.oz.au, jgifford@...ksmart.net, coley <coley@...re.org> Subject: Re: Security issue in hammerhead Please use CVE-2011-3204 for this. Thanks. -- JB ----- Original Message ----- > A security bug was reported against hammerhead in Ubuntu. You are > being > emailed as the upstream contact. Please keep > oss-security@...ts.openwall.com CC'd for any updates on this issue. > > This issue should be considered public and has not yet been assigned a > CVE. > > Details from the public bug follow: > https://launchpad.net/bugs/826679 > > ---- > From the reporter: > > "hammerhead blindly writes to to /tmp/hammer.log without prior checks. > It is possible to put a symbolic link at /tmp/hammer.log pointing at > another file - that hammerhead will then end up appending data into. > (it appears that hammerhead uses the file location as specified > in /etc/hammerhead/hh.conf - which in debian/ubuntu > is /tmp/hammer.log)." > ---- > > A quick check shows that HH_LOG and REPORT_LOG are indeed being > unconditionally opened with 'fopen(..., "a+")' in src/hammerhead.cc. > > Thanks in advance for your cooperation in coordinating a fix for this > issue, > > Jamie Strandboge > >  oss-security@...ts.openwall.com is a public mailing list for > people to collaborate on security vulnerabilities and coordinate > security updates. > > PS - I couldn't find a security contact for hammerhead, so emailed to > those I could find in AUTHORS. > > -- > Jamie Strandboge | http://www.canonical.com
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