Date: Fri, 23 Mar 2012 12:55:10 -0600 From: Kurt Seifried <kseifried@...hat.com> To: oss-security@...ts.openwall.com CC: "Todd C. Miller" <Todd.Miller@...rtesan.com> Subject: Re: CVE for OpenBSD random() bug? On 03/22/2012 07:24 AM, Todd C. Miller wrote: >> It would seem this fits into the "weaker then advertised" class of >> security problem. Thoughts/comments (anyone strongly against this)? > > Since random(3) is not a cryptographically secure random function > I'm not sure that is makes sense to assign a CVE. > > I suppose it really depends on the likelihood of someone calling > srandom(0); I don't know why anyone would do that on purpose. If > you must use random(3) instead of something stronger like arc4random(3), > it is possible to seed the PRNG via /dev/arandom using srandomdev(3) > or set the seed state manually via initstate(3), both of which > provide more than just 32 bits of seed data. > > - todd I guess if no-one thought it would be used insecurely it wouldn't need to be fixed ;). Also not all security uses of randomness are strictly crypto related (e.g. array seeds to defeat HashDoS, etc.). Please use CVE-2012-1577 for this issue. -- Kurt Seifried Red Hat Security Response Team (SRT)
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