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Date: Sun, 5 Mar 2017 11:52:26 +0100
From: Salvatore Bonaccorso <carnil@...ian.org>
To: OSS Security Mailinglist <oss-security@...ts.openwall.com>
Subject: TeX Live: CVE-2016-10243: whitelists a insecure binary/utility to be
run as external program
Hi
Via http://cveform.mitre.org/ CVE-2016-10243 was assigned for the
following issue in the TeX Live system:
> The TeX system allows for calling external programs from within the
> TeX source code (called \write18). This has been restricted to a
> small set of programs since a long time ago.
>
> Unfortunately it turned out that one program in the list, mpost
> (also shipped with TeX Live), allows in turn to specify other
> programs to be run, which allows arbitrary code execution when
> compiling a TeX document.
Upstream commit addressing the issue:
https://www.tug.org/svn/texlive?view=revision&revision=42605
Report on the issue:
https://scumjr.github.io/2016/11/28/pwning-coworkers-thanks-to-latex/
Regards,
Salvatore
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