The version of lpr that was distributed with Debian GNU/Linux 2.1 suffers from a couple of problems: * there was a race in lpr that could be exploited by users to print files they can not normally read * lpd did not check permissions of queue-files. As a result by using the -s flag it could be tricked into printing files a user can otherwise not read
The nis package that was distributed with Debian GNU/Linux 2.1 has a couple of problems: * ypserv allowed any machine in the NIS domain to insert new tables * rpc.yppasswd had a bufferoverflow in its MD5 code * rpc.yppasswd allowed users to change the GECOS and loginshell entries of other users
The version of amd that was distributed with Debian GNU/Linux 2.1 is vulnerable to a remote exploit. This was fixed in version 23.0slink1. However that fix contained an error which has been fixed in version upl102-23.slink2.
We have received reports that the version of mirror as distributed in Debian GNU/Linux 2.1 could be remotely exploited. When mirroring a remote site the remote site could use filename-constructions like " .." that would case mirror to work one level above the target directory for the mirrored files.
The version of amd that was distributed with Debian GNU/Linux 2.1 is vulnerable to a remote exploit. Passing a big directory name to amd its logging code would overflow a buffer which could be exploited. This has been fixed in version 23.0slink1.
Red Hat has recently released a Security Advisory (RHSA-1999:030-01) covering a reverse denial of service bug in the vixie cron package. As user you could restart sendmail even if the host should not receive mail through the SMTP port.
We have received a report from the author of epic4 covering a denial of service vulnerability. All versions of epic4 between version pre1.034 (including) and version pre2.004-19990718 (excluding) are vulnerable. They contain code which makes epic4 walk off of a string, causing the client to crash and possibly display arbitrary characters on the terminal.
All former versions of trn used a hardcoded filename in /tmp as temporary storage. If the file already exists as symbolic link to users files they will be overwritten.
Former versions of man2html uses a static file in /tmp for writing. This can lead into overwriting system files if a malicious user has created a symbolic link to it before upgrading man2html.
One year ago, we have received a report from SGI that a vulnerability has been discovered in the seyon program which can lead to a root compromise. Any user who can execute the seyon program can exploit this vulnerability.
This bug was experienced in May 1999 but wasn't reported on this channel yet. Former versions of the smtp-refuser package came with unchecked logging facility to /tmp/log. This allowed deleting arbitrary, root-owned files by any user who has write access to /tmp
We have received a report that former versions of libtermcap contained an exploitable buffer overflow. Debian itself is not exploitable by this bug since termcap was abandoned in favour of terminfo long ago. However, if you have compiled your own programs using termcap or have installed third party programs that depend on libtermcap and run as root they are exploitable.
We have become aware that the version mailman as supplied in Debian GNU/Linux 2.1 has a problem with verifying list administrators. The problem is that the cookie value generation used was predictable, so using forged authentication cookies it was possible to access the list administration webpages without knowing the proper password.
We have received reports that the man-db package as supplied in Debian GNU/Linux 2.1 has a vulnerability in the zsoelim program: it was vulnerable to a symlink attack. This has been fixed in version 2.3.10-69FIX.1
We have received reports that the version of the imap suite in Debian GNU/Linux 2.1 has a vulnerability in its POP-2 daemon, which can be found in the ipopd package. Using this vulnerability it is possible for remote users to get a shell as user "nobody" on the server.
