__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Center
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
Red Hat Race Conditions in LogWatch
[Red Hat RHSA-2002:053-12]
April 8, 2002 16:00 GMT Number M-065
______________________________________________________________________________
PROBLEM: Versions of LogWatch 2.1.1 and earlier have a vulnerability due
to a race condition during the creation of a temporary
directory.
PLATFORM: Red Hat Linux 7.2
LogWatch is a customizable log analysis system which is used by
default in Red Hat Linux 7.2.
DAMAGE: This vulnerability can allow a local user to gain root
privileges.
SOLUTION: Apply the update supplied by the vendor.
______________________________________________________________________________
VULNERABILITY The risk is LOW. A local user account is needed to exploit this
ASSESSMENT: vulnerability.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/m-065.shtml
ORIGINAL BULLETIN: http://online.securityfocus.com/advisories/4022
______________________________________________________________________________
[***** Start Red Hat RHSA-2002:053-12 *****]
---------------------------------------------------------------------
Red Hat, Inc. Red Hat Security Advisory
Synopsis: Race conditions in logwatch
Advisory ID: RHSA-2002:053-12
Issue date: 2002-03-28
Updated on: 2002-04-04
Product: Red Hat Linux
Keywords: logwatch tmp race
Cross references: RHSA-2002:054
Obsoletes:
---------------------------------------------------------------------
1. Topic:
Updated LogWatch packages are available that fix tmp file race conditions
which can cause a local user to gain root privileges.
2. Relevant releases/architectures:
Red Hat Linux 7.2 - noarch
3. Problem description:
LogWatch is a customizable log analysis system which is used by default in
Red Hat Linux 7.2.
Versions of LogWatch 2.1.1 and earlier have a vulnerability due to a race
condition during the creation of a temporary directory. This vulnerability
can allow a local user to gain root privileges. An additional race
condition was found in versions of LogWatch 2.5 and earlier.
Users should update to the errata packages containing Logwatch 2.6, which
are not vulnerable to these issues.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the names CAN-2002-0162 and CAN-2002-0165 to these issues.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the
desired RPMs.
Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
62055 - A /tmp race condition leads to root
46371 - Handle accepted packets, not just reject and deny
56191 - logwatch is too noisy
58578 - Problem with RPM dependance
61202 - Logwatch logs appear to have emerged themselves with other logfiles.
They are semi-unreadable
61829 - logwatch's sshd filter should scan secure logs
61831 - logwatch modprobe filter should allow dashes in module names
61832 - secure filter should ignore sshd messages
6. RPMs required:
Red Hat Linux 7.2:
SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/logwatch-2.6-1.src.rpm
noarch:
ftp://updates.redhat.com/7.2/en/os/noarch/logwatch-2.6-1.noarch.rpm
7. Verification:
MD5 sum Package Name
--------------------------------------------------------------------------
bb75f22ed70447d6a46d5d5b2a7ec7aa 7.2/en/os/SRPMS/logwatch-2.6-1.src.rpm
ac8ea7498a2d6b14bb325a511cf8ba6b 7.2/en/os/noarch/logwatch-2.6-1.noarch.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/about/contact/pgpkey.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>
8. References:
http://list.kaybee.org/archives/logwatch-announce/2002-March/000002.html
http://list.kaybee.org/archives/logwatch-announce/2002-March/000003.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0162
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0165
Copyright(c) 2000, 2001, 2002 Red Hat, Inc.
[***** End Red Hat RHSA-2002:053-12 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Red Hat, Inc. for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Center, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 925-422-8193 (7x24)
FAX: +1 925-423-8002
STU-III: +1 925-423-2604
E-mail: ciac@ciac.org
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://www.ciac.org/
Anonymous FTP: ftp.ciac.org
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.
This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.
LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)
M-056: Red Hat "uuxqt" Vulnerability
M-057: Red Hat "at" Vulnerability
M-058: Apache Vulnerabilities on IRIX
M-059: Red Hat "groff" Vulnerability
M-060: JRE Bytecode Verifier Vulnerability
M-061: HP VVOS Web proxy Vulnerability
M-062: Double Free Bug in zlib Compression Library
M-063: Microsoft Internet Explorer Vulnerabilities
CIACTech02-002: Microsoft Browser Helper Objects (BHO) Could Hide Malicious Code
M-064: Cisco web interface vulnerabilities in ACS for Windows
TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2024 AOH
