oss-sec mailing list archives

Re: Request for CVE Identifier: bzexe insecure temporary file


From: Benjamin Renaut <benml () tokidev fr>
Date: Fri, 28 Oct 2011 14:32:04 +0200

Hi,

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<rcvalle () redhat com>:

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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