Date: Tue, 20 Mar 2012 17:22:32 +0100 From: Marcus Meissner <meissner@...e.de> To: oss-security@...ts.openwall.com Subject: Re: CVE request -- kernel: execshield: predictable ascii armour base address Hi, There are also 4 seperate issues in Chris blogpost. CVEs are sometimes assigned if security preconditions are not met, or are too weak. (like if you would have a password hashing algorithm without salt ... while it works per-se, it is too weak) Ciao, Marcus On Tue, Mar 20, 2012 at 09:01:39AM -0700, Nick Kralevich wrote: > Can someone explain to me why this is worthy of a CVE? I can see this as a > bug of course. But a "vulnerability"? > > This bug, by itself, does not cause a vulnerability. It just makes > vulnerabilities easier to exploit. I'm not sure this is worthy of a CVE > unless we're willing to assign CVEs to all fixed address allocations. > > -- Nick > > On Tue, Mar 20, 2012 at 6:10 AM, Eugene Teo <eugene@...hat.com> wrote: > > > On 03/20/2012 06:20 PM, Petr Matousek wrote: > > > When running a binary with a lot of shared libraries, predictable base > > > address is used for one of the loaded libraries. > > > > > > This flaw could be used to bypass ASLR. > > > > > > References: > > > > > http://scarybeastsecurity.blogspot.com/2012/03/some-random-observations-on-linux-aslr.html > > > https://bugzilla.redhat.com/show_bug.cgi?id=804947 > > > > Use CVE-2012-1568. > > > > Eugene > > > > > > -- > Nick Kralevich | Android Security | nnk@...gle.com | 650.214.4037 -- Working, but not speaking, for the following german company: SUSE LINUX Products GmbH, HRB 16746 (AG Nuernberg) Geschaeftsfuehrer: Jeff Hawn, Jennifer Guild, Felix Imendoerffer
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