Date: Wed, 25 Feb 2009 10:06:28 +0800 From: Eugene Teo <eugene@...hat.com> To: oss-security@...ts.openwall.com CC: "Steven M. Christey" <coley@...us.mitre.org> Subject: Re: CVE request: kernel: memory disclosure in SO_BSDCOMPAT gsopt Eugene Teo wrote: > Steven M. Christey wrote: >> ====================================================== >> Name: CVE-2009-0676 > [...] >> The sock_getsockopt function in net/core/sock.c in the Linux kernel >> before 188.8.131.52 does not initialize a certain structure member, which >> allows local users to obtain potentially sensitive information from >> kernel memory via an SO_BSDCOMPAT getsockopt request. > > The fix for CVE-2009-0676 (upstream commit df0bca04) is incomplete. Note > that the same problem of leaking kernel memory will reappear if someone > on some architecture uses struct timeval with some internal padding (for > example tv_sec 64-bit and tv_usec 32-bit) --- then, you are going to > leak the padded bytes to userspace. > > net: amend the fix for SO_BSDCOMPAT gsopt infoleak > http://marc.info/?l=linux-kernel&m=123540732700371&w=2 > http://marc.info/?l=linux-netdev&m=123543237010175&w=2 Upstream commit: 50fee1dec5d71b8a14c1b82f2f42e16adc227f8b. Thanks, Eugene -- Eugene Teo / Red Hat Security Response Team
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.