8246775 2002-04-04 17:32 -0500 /121 rader/ <bugzilla@redhat.com>
Sänt av: joel@lysator.liu.se
Importerad: 2002-04-05 18:53 av Brevbäraren
Extern mottagare: redhat-watch-list@redhat.com
Extern kopiemottagare: bugtraq@securityfocus.com
Extern kopiemottagare: linux-security@redhat.com
Mottagare: Bugtraq (import) <21745>
Ärende: [RHSA-2002:053-12] Race conditions in logwatch
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From: bugzilla@redhat.com
To: redhat-watch-list@redhat.com
Cc: bugtraq@securityfocus.com, linux-security@redhat.com
Message-ID: <200204042232.g34MWqx19933@porkchop.redhat.com>
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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:
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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.
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