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

Package:	squid	
Issue Date: 	July 25, 2001
Priority:	medium		
Advisory ID: 	YDU-20010725-14


1. 	Topic:

	New squid packages are available that fix a security
	problem in squid's HTTP accelerator feature. If Squid
	was configured in accelerator-only mode, it was possible
	for remote users to portscan machine through the Squid
	proxy, potentially allowing for access to machines not
	otherwise available.


2. 	Problem:

	"If Squid is configured with 'httpd_accel_host ' and
	'httpd_accel_with_proxy off', access control lists will not be enabled.
	This could allow any remote user to use the squid server to access other
	sites, potentially ones that they could not reach otherwise."
	(from Red Hat's security 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 squid 

   	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-2.0/ppc/RPMS/
		rpm -Fvh squid-2.3.STABLE4-9.7.ppc.rpm 


4. Verification

MD5 checksum			  Package
--------------------------------  ----------------------------
72414e6c2eda1c871da246c0a55bc0e5  SRPMS/squid-2.3.STABLE4-9.7.src.rpm
d0439fbe80e81f874543bf2282b3ae1a  ppc/RPMS/squid-2.3.STABLE4-9.7.ppc.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