Bugtraq mailing list archives

Re: SECURITY: groff, rhs-printfilters, tetex, metamail fixes


From: saw () MSU RU (Savochkin Andrey Vladimirovich)
Date: Sat, 25 Oct 1997 11:52:32 +0400


Gentlemen!

Red Hat just announced security fixes in several packages.


Numerous security holes have recentely been fixed. Only one of these
is at all serious, most are minor problems with possible /tmp exploits.

These fixes apply to all users of Red Hat 4.x releases. Similiar fixes
for the Thunderbird and Mustang beta glibc releases will show up in
the devel tree on ftp.redhat.com overnight.

Note that many of these fixes now require the mktemp package, which is
also available as an update for Red Hat 4.2.

Erik

i386
- ----
rpm -Uvh ftp://ftp.redhat.com/updates/4.2/i386/groff-1.10-8.1.i386.rpm
rpm -Uvh ftp://ftp.redhat.com/updates/4.2/i386/metamail-2.7-7.1.i386.rpm
rpm -Uvh ftp://ftp.redhat.com/updates/4.2/i386/mktemp-0.9-1.i386.rpm
rpm -Uvh ftp://ftp.redhat.com/updates/4.2/i386/rhs-printfilters-1.41.1-1.i386.rpm
rpm -Uvh ftp://ftp.redhat.com/updates/4.2/i386/tetex-dvips-0.4pl8-5.1.i386.rpm
[...]

Ugly temporary file creation allowing
any user in the system trash any file of other users of the system
are surely only "minor" problems.

It isn't matter. Now this kind of problems was fixed
for metamail and tetex and it's VERY COOL.

You can look yourself what is changed in these packages.
If you find lines like

        mkdir /tmp/decode.$$
        cd /tmp/decode.$$

in /usr/bin/sun-message.csh don't trust your eyes: the problem
was declared to be fixed!

[Hint to Erik: compare the set of patches declared in the head of your spec
file and the set of really applied ones :-> ]

BTW: Do you consider ugly temporary file creation dangerous only in
dvi-to-ps.fpi or in other scripts too?
Run grep ^TEMPDIR /usr/bin/MakeTeX{PK,TFM,MF}.

Best regards,
                                        Andrey V.
                                        Savochkin



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