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PISA-21-NOV-99-004
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|**** Project Independence Security Advisory ****|
`-----------* ID: PISA-21-NOV-99-004 *-----------'
Issued by: David Webster <cognition@bigfoot.com>
Issue Date: 21-NOV-99
Overview: Denial of service attack in syslogd
Affected: Independence Release 6.0-0.8 (Redhat 6.0)
References: RedHat Security Advisory; RHSA-1999:055-01
Bugtraq id; #809
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Detailed Problem Description:
The syslog daemon by default used unix domain stream sockets
for receiving local log connections. By opening a large number
of connections to the log daemon, the user could make the system
unresponsive.
Thanks go to Olaf Kirch (okir@monad.swb.de) for noting the
vulnerability and providing patches.
Solution:
Update the affected RPM packages by downloading and
installing the RPMs listed below. For each RPM, run:
root# rpm -Uvh <filename>
where <filename> is the name of the RPM.
[Note: You need only install EITHER the compiled RPM,
(*.i386.rpm) OR the source RPM, (*.src.rpm), NOT both.]
RPMs:
ftp://updates.redhat.com/6.0/i386/sysklogd-1.3.31-14.i386.rpm
Source RPMs:
ftp://updates.redhat.com/6.0/SRPMS/sysklogd-1.3.31-14.src.rpm
Verification:
MD5 sum Package Name
- --------------------------------------------------------------------------
8e59b61b8b1a9356ea675d7234b801d8 i386/sysklogd-1.3.31-14.i386.rpm
55cc22adb6b3272ef23763e89309af24 SRPMS/sysklogd-1.3.31-14.src.rpm
- --------------------------------------------------------------------------
These packages are GPG signed by Red Hat, Inc. for security.
Their key is available at: http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg <filename>
This security advisory, and all future ones should be signed by me,
David Webster (aka cognition), with key ID: 45 FA C2 83
Which is avaliable from: http://www.cognite.net/pgp.html,
and most good pgp key servers.
An archive of these messages can be currently be found on:
http://www.cognite.net/indy/
A process of automatic retrival is being worked on.
[Note: these problems were discovered, and fixed by RedHat.]
.---------------------------------------------------.
| And problems regarding this, or future advisories |
| should be emailed to me: <cognition@bigfoot.com> |
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Comment: David Webster (aka cogNiTioN) <http://www.cognite.net/>
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=iIun
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