Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2002.593 -- RHSA-2002:223-07
Updated ypserv packages fixes memory leak
28 October 2002
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: ypserv
Vendor: Red Hat
Operating System: Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
Red Hat Linux 7.3
Platform: Alpha
i386
IA-64
SPARC
Impact: Denial of Service
Access Required: Remote
- --------------------------BEGIN INCLUDED TEXT--------------------
- ---------------------------------------------------------------------
Red Hat, Inc. Red Hat Security Advisory
Synopsis: Updated ypserv packages fixes memory leak
Advisory ID: RHSA-2002:223-07
Issue date: 2002-10-08
Updated on: 2002-10-24
Product: Red Hat Linux
Keywords: ypserv memory leak
Cross references:
Obsoletes:
CVE Names: CAN-2002-1232
- ---------------------------------------------------------------------
1. Topic:
Updated ypserv packages which fix a memory leak are now available for Red
Hat Linux 7.x and 6.2.
2. Relevant releases/architectures:
Red Hat Linux 6.2 - alpha, i386, sparc
Red Hat Linux 7.0 - alpha, i386
Red Hat Linux 7.1 - alpha, i386, ia64
Red Hat Linux 7.2 - i386, ia64
Red Hat Linux 7.3 - i386
3. Problem description:
ypserv is an NIS authentication server. ypserv versions before 2.5 contain
a memory leak that can be triggered remotely.
When someone requests a map that doesn't exist, a previous mapname may be
leaked. This happens, for instance, if you run "ypmatch foo
aaaaaaaaaaaaaaaaaaaa". Repeated runs will result in the yp server using
more and more memory, and running more slowly. It could also result in
ypserv being killed due to the system being out of memory.
This errata updates Red Hat Linux 7.x to ypserv version 2.5 which doesn't
have the memory leak, and updates Red Hat Linux 6.x to a patched version of
ypserv that doesn't have the memory leak.
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. RPMs required:
Red Hat Linux 6.2:
SRPMS:
ftp://updates.redhat.com/6.2/en/os/SRPMS/ypserv-1.3.9-3.6x.src.rpm
alpha:
ftp://updates.redhat.com/6.2/en/os/alpha/ypserv-1.3.9-3.6x.alpha.rpm
i386:
ftp://updates.redhat.com/6.2/en/os/i386/ypserv-1.3.9-3.6x.i386.rpm
sparc:
ftp://updates.redhat.com/6.2/en/os/sparc/ypserv-1.3.9-3.6x.sparc.rpm
Red Hat Linux 7.0:
SRPMS:
ftp://updates.redhat.com/7.0/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
alpha:
ftp://updates.redhat.com/7.0/en/os/alpha/ypserv-2.5-2.7x.alpha.rpm
i386:
ftp://updates.redhat.com/7.0/en/os/i386/ypserv-2.5-2.7x.i386.rpm
Red Hat Linux 7.1:
SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
alpha:
ftp://updates.redhat.com/7.1/en/os/alpha/ypserv-2.5-2.7x.alpha.rpm
i386:
ftp://updates.redhat.com/7.1/en/os/i386/ypserv-2.5-2.7x.i386.rpm
ia64:
ftp://updates.redhat.com/7.1/en/os/ia64/ypserv-2.5-2.7x.ia64.rpm
Red Hat Linux 7.2:
SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
i386:
ftp://updates.redhat.com/7.2/en/os/i386/ypserv-2.5-2.7x.i386.rpm
ia64:
ftp://updates.redhat.com/7.2/en/os/ia64/ypserv-2.5-2.7x.ia64.rpm
Red Hat Linux 7.3:
SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
i386:
ftp://updates.redhat.com/7.3/en/os/i386/ypserv-2.5-2.7x.i386.rpm
6. Verification:
MD5 sum Package Name
- --------------------------------------------------------------------------
ccd7373767c66d1f33969376283bdaf3 6.2/en/os/SRPMS/ypserv-1.3.9-3.6x.src.rpm
0a206ef1852e6925001b1162af18f592 6.2/en/os/alpha/ypserv-1.3.9-3.6x.alpha.rpm
d63f8bbf7e3ac74069cb6e69545b5311 6.2/en/os/i386/ypserv-1.3.9-3.6x.i386.rpm
295c8ced6b5b2cb9f33564d9405922c6 6.2/en/os/sparc/ypserv-1.3.9-3.6x.sparc.rpm
37be9d1ee5505ff395d5a521cacedc83 7.0/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
6aa1e1c525e6dcc3739e95a7cea3f18c 7.0/en/os/alpha/ypserv-2.5-2.7x.alpha.rpm
598182855e18bcfe501bffdefacc26bf 7.0/en/os/i386/ypserv-2.5-2.7x.i386.rpm
37be9d1ee5505ff395d5a521cacedc83 7.1/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
6aa1e1c525e6dcc3739e95a7cea3f18c 7.1/en/os/alpha/ypserv-2.5-2.7x.alpha.rpm
598182855e18bcfe501bffdefacc26bf 7.1/en/os/i386/ypserv-2.5-2.7x.i386.rpm
0f4ff96fb026fb33d96c7c9030dcf037 7.1/en/os/ia64/ypserv-2.5-2.7x.ia64.rpm
37be9d1ee5505ff395d5a521cacedc83 7.2/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
598182855e18bcfe501bffdefacc26bf 7.2/en/os/i386/ypserv-2.5-2.7x.i386.rpm
0f4ff96fb026fb33d96c7c9030dcf037 7.2/en/os/ia64/ypserv-2.5-2.7x.ia64.rpm
37be9d1ee5505ff395d5a521cacedc83 7.3/en/os/SRPMS/ypserv-2.5-2.7x.src.rpm
598182855e18bcfe501bffdefacc26bf 7.3/en/os/i386/ypserv-2.5-2.7x.i386.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 -v <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:
md5sum <filename>
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1232
Copyright(c) 2000, 2001, 2002 Red Hat, Inc.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/Information/advisories.html
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business
hours which are GMT+10:00 (AEST). On call after hours
for member emergencies only.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key
iQCVAwUBPb0nISh9+71yA2DNAQGHtgP+Jb/9lYSb1BE7zepERziM/WBgibpnbWDk
DHO32RevWa4lb2BU/74Y8cYTGND7PY9Rwvl8GlvDgtZSsG4LRfYiyjS/b9W6F48o
f6ni+PV/8cD20LzW6aNOueStsQFTDtfZCsie92/oUFZ2WrjOkvGrJrfK/Xp9DKSG
Gz2gpCJkwPM=
=Nu7W
-----END PGP SIGNATURE-----