Date: Wed, 17 Dec 2008 10:10:28 +0800 From: "Eugene Teo" <eugeneteo@...nel.sg> To: "Steven M. Christey" <coley@...us.mitre.org> Cc: oss-security@...ts.openwall.com Subject: Re: CVE request: kernel: applicom: fix an unchecked user ioctl range On Wed, Dec 17, 2008 at 10:07 AM, Eugene Teo <eugeneteo@...nel.sg> wrote: > On Wed, Dec 17, 2008 at 9:55 AM, Steven M. Christey > <coley@...us.mitre.org> wrote: >> >> On Wed, 10 Dec 2008, Eugene Teo wrote: >> >>> Steve, can you please assign a CVE name. Thanks. >>> >>> http://bugzilla.kernel.org/show_bug.cgi?id=11408 >>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a7be18d >> >> Can the affected IOCTL be accessed by malicious attackers? If it's >> protected in some sense, maybe it doesn't cross privilege boundaries. >> Although Linus does mention an "unchecked user ioctl range." > > ac_ioctl() does not restrict access to only privileged users, and > IndexCard is user-controllable. Hmm, there's a comment in the ac_ioctl() that the device for this is only accessible by root, so if out of range may not matter. Hmm. So, maybe, maybe not. Eugene
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