Subject: [yellowdog-updates] Yellow Dog Linux Security Advisory: YDU-20010725-4
dburcaw@newhope.terraplex.com
Date: Thu Aug 09 2001 - 15:26:02 MDT
Yellow Dog Linux Security Announcement
--------------------------------------
Package: krb5
Issue Date: July 25, 2001
Priority: high
Advisory ID: YDU-20010725-4
1. Topic:
Updated packages are available which
fixed a potential vulnerability in
krb5-workstation's included ftp server.
2. Problem:
"By use of a carefully-crafted authentication
request, a malicious client could exploit a
vulnerability made possible by a missing bounds check.
A malicious client could also overflow the buffer
space used by the server for performing globbing
operations." (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 krb5
yup update krb5-libs
yup update krb5-server
yup update krb5-workstation
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 krb5-1.2.2-5.src.rpm
rpm -Fvh krb5-libs-1.2.2-5.ppc.rpm
rpm -Fvh krb5-server-1.2.2-5.ppc.rpm
rpm -Fvh krb5-workstation-1.2.2-5.ppc.rpm
4. Verification
MD5 checksum Package
-------------------------------- ----------------------------
ab1ddabc0941bc35cd986a7c4fddde1d SRPMS/krb5-1.2.2-5.src.rpm
ace7f2982f62873803a9c01b849d1321 ppc/RPMS/krb5-devel-1.2.2-5.ppc.rpm
8c8a23b7f5a8b823259bbd3b527c1fa9 ppc/RPMS/krb5-libs-1.2.2-5.ppc.rpm
4d4a58cbbe373d50e0ffe458b12f3ffb ppc/RPMS/krb5-server-1.2.2-5.ppc.rpm
8c0940aa0ab23ef321f07ddcc31f08dd ppc/RPMS/krb5-workstation-1.2.2-5.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 - 15:29:34 MDT