January 28, 2002

YDL: enscript security advisory

Author: JT Smith

Yellow Dog: "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."
From:	 dburcaw@newhope.terraplex.com
To:	 yellowdog-updates@lists.yellowdoglinux.com
Subject: [yellowdog-updates] Yellow Dog Linux Security Update: YDU-20020127-5
Date:	 28 Jan 2002 01:23:30 -0000

Yellow Dog Linux Security Announcement
--------------------------------------

Package:	enscript	
Issue Date: 	January 27, 2002	
Priority:	medium		
Advisory ID: 	YDU-20020127-5


1. 	Topic:

	Updated enscript packages that fix insecure handling of
	temporary files are available.


2. 	Problem:

	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.
	(from Red Hat advisory)


3. 	Solution:

   	a) Updating via yup...
   	We suggest that you use the Yellow Dog Update Program (yup)
   	to keep your system up-to-date. The following command(s) will
   	automatically retrieve and install the fixed version of
   	this update onto your system:

   		yup update enscript 
 

   	b) Updating manually...
   	The update can also be retrieved manually from our ftp site
   	below along with the rpm command that should be used to install
   	the update.  (Please use a mirror site)

   		ftp://ftp.yellowdoglinux.com/pub/yellowdog/updates/yellowdog-2.1/ppc/
rpm -Fvh enscript-1.6.1-16.2.ppc.rpm


4. Verification

MD5 checksum			  Package
--------------------------------  ----------------------------
3adf8ce857e242d1ef38d85c5d600dad  ppc/enscript-1.6.1-16.2.ppc.rpm
ac8e00d3b93845dd02637723e6668c5f  SRPMS/enscript-1.6.1-16.2.src.rpm

If you wish to verify that each package has not been corrupted or tampered with,
examine the md5sum with the following command: rpm --checksig --nogpg filename


5. Misc.

Terra Soft has setup a moderated mailing list where these security, bugfix, and package
enhancement announcements will be posted. See http://lists.yellowdoglinux.com/ for more
information.

For information regarding the usage of yup, the Yellow Dog Update Program, see 
http://http://www.yellowdoglinux.com/support/solutions/ydl_general/yup.shtml

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