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Date: Fri, 28 Oct 2011 14:32:04 +0200
From: Benjamin Renaut <>
Subject: Re: Request for CVE Identifier: bzexe insecure temporary


I do not believe gzexe is affected, as it doesn't use ln but instead 
create a temporary directory with umask 77 - preventing any race condition.

Best regards,
Benjamin Renaut.

On 28/10/11 14:22, Hanno Böck wrote:
> Am Fri, 28 Oct 2011 07:48:16 -0400 (EDT)
> schrieb Ramon de C Valle<>:
>> This is a security issue reported by vladz in bzexe. This is a low
>> impact security issue, since bzexe is rarely used and the race
>> condition window is very narrow, but still exploitable.
> Have you checked if this also affects gzexe? It is pretty much the same
> as bzexe, just using gzip instead of bzip2. (afaik, no xzexe exists)

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