oss-security - Re: CVE request: kernel: V4L/DVB (9621): Avoid writing outside shadow.bytes[] array

Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Thu, 20 Nov 2008 20:59:24 -0500 (EST)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: oss-security@...ts.openwall.com
cc: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request: kernel: V4L/DVB (9621): Avoid writing
 outside shadow.bytes[] array

On Wed, 19 Nov 2008, Eugene Teo wrote:

> If the write operation fails, the device won't be able to decode audio
> signals properly, so on further analysis, we probably don't need a CVE
> name for this. Take note.

Does this mean, roughly, that this write only occurs into a different
portion of a larger contiguous buffer, so it affects audio processing
(e.g. throwing an error) or parsing, but otherwise can't be used to affect
other memory locations outside that buffer?

Hope that made sense.

- Steve

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.