Date: Tue, 10 Oct 2000 11:51:16 -0600
From: Linux Mandrake Security Team email@example.com
To: Linux Mandrake Security Announcements
Subject: [Security Announce] MDKSA-2000:057 - openssh update
A problem exists with openssh's scp program. If a user uses scp
to move files from a server that has been compromised, the
operation can be used to replace arbitrary files on the user's
system. The problem is made more serious by setuid versions of ssh
which allow overwriting any file on the local user's system. If the
ssh program is not setuid or is setuid to someone other than root,
the intrustion is limited to files with write access granted to the
owner of the ssh program. In either case, files can be overwritten
with code allowing others access to the system unexpectedly. While
no fix has been provided for openssh as of yet, the versions of
openssh available for Linux-Mandrake 7.0 and 7.1 were setuid root.
This update removes the setuid bit from the ssh program and limits
the exploitability of scp somewhat. All users of Linux-Mandrake are
encouraged to upgrade to these latest openssh builds.
Linux-Mandrake 7.0 users will also need to upgrade openssl in order
to use the 7.0 update of openssh.
Please verify these md5 checksums of the updates prior to
upgrading to ensure the integrity of the downloaded package. You
can do this by running the md5sum program on the downloaded package
by using "md5sum package.rpm".
Updated packages are available in the "updates/[ver]/RPMS/"
directory. For example, if you are looking for an updated RPM
package for Linux-Mandrake 7.1, look for it in "updates/7.1/RPMS/".
Updated source RPMs are available as well, but you generally do not
need to download them.
Please be aware that sometimes it takes the mirrors a few hours
to update, so if you want an immediate upgrade, please use one of
the two above-listed mirrors.
You can view other security advisories for Linux-Mandrake