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Date: Mon, 10 Apr 2017 08:29:31 +0100
From: Simon McVittie <smcv@...ian.org>
To: oss-security@...ts.openwall.com
Subject: Re: CVE-2017-7592: libtiff: left shift
On Mon, 10 Apr 2017 at 07:03:25 +0000, Agostino Sarubbo wrote:
> Since there is no cast, *(pp+1) is treated as int, so
> UndefinedBehaviorSanitizer says:
> runtime error: left shift of 134 by 24 places cannot be represented in type
> 'int'
This is a bug, but how is it a security vulnerability? Can an attacker
exploit it for DoS or code execution or something with a malformed TIFF
image?
S
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