Subject: [yellowdog-updates] Yellow Dog Linux Security Advisory: YDU-20010725-14
dburcaw@newhope.terraplex.com
Date: Thu Aug 09 2001 - 17:18:47 MDT
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://devel.yellowdoglinux.com/rp_yup.shtml
This archive was generated by hypermail 2a24 : Thu Aug 09 2001 - 17:21:01 MDT