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Message-ID: <4D86DB49.4010009@redhat.com>
Date: Mon, 21 Mar 2011 12:59:53 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: Dan Rosenberg <dan.j.rosenberg@...il.com>,
"Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request: kernel: heap corruption in IrDA
On 03/21/2011 03:26 AM, Dan Rosenberg wrote:
> When providing an invalid IrDA nickname for an IrNET peer, a local
> attacker can cause a kernel panic due to an underflow in a memcpy()
> size calculation or cause a controllable heap overflow that may lead
> to privilege escalation. Write access to the /dev/irnet device file
> is required to trigger the vulnerability.
>
> Reference:
> http://marc.info/?l=linux-netdev&m=130060169116047&w=2
The default permissions for /dev/irnet is root-read/write only. In the
past I have ignored such issues that can only be triggered by root, even
though the permissions can be changed. I wouldn't assign a CVE name for
this. CC'ed Steve.
Thanks, Eugene
--
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }
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