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AUSCERT External Security Bulletin Redistribution
ESB-2002.042 -- RHSA-2002:012-06
Updated enscript packages fix temporary file handling vulnerabilities
21 January 2002
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AusCERT Security Bulletin Summary
---------------------------------
Product: enscript
Vendor: Red Hat
Operating System: Red Hat Linux 6.0
Red Hat Linux 6.1
Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
Linux
UNIX
Platform: Alpha
i386
IA-64
SPARC
Impact: Overwrite Arbitrary Files
Reduced Security
Increased Privileges
Access Required: Existing Account
Ref: ESB-2002.038
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Red Hat, Inc. Red Hat Security Advisory
Synopsis: Updated enscript packages fix temporary file handling vulnerabilities
Advisory ID: RHSA-2002:012-06
Issue date: 2002-01-14
Updated on: 2002-01-17
Product: Red Hat Linux
Keywords: enscript temporary files
Cross references:
Obsoletes:
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1. Topic:
Updated enscript packages that fix insecure handling of
temporary files are available.
2. Relevant releases/architectures:
Red Hat Linux 6.0 - alpha, i386, sparc
Red Hat Linux 6.1 - alpha, i386, sparc
Red Hat Linux 6.2 - alpha, i386, sparc
Red Hat Linux 7.0 - alpha, i386
Red Hat Linux 7.1 - alpha, i386, ia64
Red Hat Linux 7.2 - i386, ia64
3. Problem description:
GNU enscript is a program for converting ASCII files to PostScript(TM).
When it creates temporary files, it does so with predictable filenames in
a manner that would follow symbolic links. This could allow a local user
to overwrite files written by the user running enscript, or read the
contents of the temporary files.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the
desired RPMs.
Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
57704 - tmpnam and tempnam
6. RPMs required:
Red Hat Linux 6.0:
SRPMS:
ftp://updates.redhat.com/6.0/en/os/SRPMS/enscript-1.6.1-16.1.src.rpm
alpha:
ftp://updates.redhat.com/6.0/en/os/alpha/enscript-1.6.1-16.1.alpha.rpm
i386:
ftp://updates.redhat.com/6.0/en/os/i386/enscript-1.6.1-16.1.i386.rpm
sparc:
ftp://updates.redhat.com/6.0/en/os/sparc/enscript-1.6.1-16.1.sparc.rpm
Red Hat Linux 6.1:
SRPMS:
ftp://updates.redhat.com/6.1/en/os/SRPMS/enscript-1.6.1-16.1.src.rpm
alpha:
ftp://updates.redhat.com/6.1/en/os/alpha/enscript-1.6.1-16.1.alpha.rpm
i386:
ftp://updates.redhat.com/6.1/en/os/i386/enscript-1.6.1-16.1.i386.rpm
sparc:
ftp://updates.redhat.com/6.1/en/os/sparc/enscript-1.6.1-16.1.sparc.rpm
Red Hat Linux 6.2:
SRPMS:
ftp://updates.redhat.com/6.2/en/os/SRPMS/enscript-1.6.1-16.1.src.rpm
alpha:
ftp://updates.redhat.com/6.2/en/os/alpha/enscript-1.6.1-16.1.alpha.rpm
i386:
ftp://updates.redhat.com/6.2/en/os/i386/enscript-1.6.1-16.1.i386.rpm
sparc:
ftp://updates.redhat.com/6.2/en/os/sparc/enscript-1.6.1-16.1.sparc.rpm
Red Hat Linux 7.0:
SRPMS:
ftp://updates.redhat.com/7.0/en/os/SRPMS/enscript-1.6.1-16.2.src.rpm
alpha:
ftp://updates.redhat.com/7.0/en/os/alpha/enscript-1.6.1-16.2.alpha.rpm
i386:
ftp://updates.redhat.com/7.0/en/os/i386/enscript-1.6.1-16.2.i386.rpm
Red Hat Linux 7.1:
SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/enscript-1.6.1-16.2.src.rpm
alpha:
ftp://updates.redhat.com/7.1/en/os/alpha/enscript-1.6.1-16.2.alpha.rpm
i386:
ftp://updates.redhat.com/7.1/en/os/i386/enscript-1.6.1-16.2.i386.rpm
ia64:
ftp://updates.redhat.com/7.1/en/os/ia64/enscript-1.6.1-16.2.ia64.rpm
Red Hat Linux 7.2:
SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/enscript-1.6.1-16.2.src.rpm
i386:
ftp://updates.redhat.com/7.2/en/os/i386/enscript-1.6.1-16.2.i386.rpm
ia64:
ftp://updates.redhat.com/7.2/en/os/ia64/enscript-1.6.1-16.2.ia64.rpm
7. Verification:
MD5 sum Package Name
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163b47d58543af9e02bcb756aaaa69e6 6.0/en/os/SRPMS/enscript-1.6.1-16.1.src.rpm
4669b3dff4260c66168b30a5da881577 6.0/en/os/alpha/enscript-1.6.1-16.1.alpha.rpm
08b0ccf910e84774a47297611a001ecf 6.0/en/os/i386/enscript-1.6.1-16.1.i386.rpm
0f576ebef76e6d55ba046f3de911e435 6.0/en/os/sparc/enscript-1.6.1-16.1.sparc.rpm
163b47d58543af9e02bcb756aaaa69e6 6.1/en/os/SRPMS/enscript-1.6.1-16.1.src.rpm
4669b3dff4260c66168b30a5da881577 6.1/en/os/alpha/enscript-1.6.1-16.1.alpha.rpm
08b0ccf910e84774a47297611a001ecf 6.1/en/os/i386/enscript-1.6.1-16.1.i386.rpm
0f576ebef76e6d55ba046f3de911e435 6.1/en/os/sparc/enscript-1.6.1-16.1.sparc.rpm
163b47d58543af9e02bcb756aaaa69e6 6.2/en/os/SRPMS/enscript-1.6.1-16.1.src.rpm
4669b3dff4260c66168b30a5da881577 6.2/en/os/alpha/enscript-1.6.1-16.1.alpha.rpm
08b0ccf910e84774a47297611a001ecf 6.2/en/os/i386/enscript-1.6.1-16.1.i386.rpm
0f576ebef76e6d55ba046f3de911e435 6.2/en/os/sparc/enscript-1.6.1-16.1.sparc.rpm
bc28cddcc7ac7d6d0c033e861869999e 7.0/en/os/SRPMS/enscript-1.6.1-16.2.src.rpm
1f3b4ceee8b8c767868bbca6d8843dff 7.0/en/os/alpha/enscript-1.6.1-16.2.alpha.rpm
60c482286d2eaa7a48b707cfad323c50 7.0/en/os/i386/enscript-1.6.1-16.2.i386.rpm
bc28cddcc7ac7d6d0c033e861869999e 7.1/en/os/SRPMS/enscript-1.6.1-16.2.src.rpm
1f3b4ceee8b8c767868bbca6d8843dff 7.1/en/os/alpha/enscript-1.6.1-16.2.alpha.rpm
60c482286d2eaa7a48b707cfad323c50 7.1/en/os/i386/enscript-1.6.1-16.2.i386.rpm
fd7aa3e5766bff5155bda4547b7612d6 7.1/en/os/ia64/enscript-1.6.1-16.2.ia64.rpm
bc28cddcc7ac7d6d0c033e861869999e 7.2/en/os/SRPMS/enscript-1.6.1-16.2.src.rpm
60c482286d2eaa7a48b707cfad323c50 7.2/en/os/i386/enscript-1.6.1-16.2.i386.rpm
fd7aa3e5766bff5155bda4547b7612d6 7.2/en/os/ia64/enscript-1.6.1-16.2.ia64.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/about/contact/pgpkey.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg <filename>
8. References:
Copyright(c) 2000, 2001, 2002 Red Hat, Inc.
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