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[RHSA-2003:317-01] Updated iproute packages fix local security vulnerability



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                   Red Hat Security Advisory

Synopsis:          Updated iproute packages fix local security vulnerability
Advisory ID:       RHSA-2003:317-01
Issue date:        2003-11-12
Updated on:        2003-11-12
Product:           Red Hat Enterprise Linux
Keywords:          DoS
Cross references:  
Obsoletes:         
CVE Names:         CAN-2003-0856
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1. Topic:

Updated iproute packages that close a locally-exploitable denial of service
vulnerability are now available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, ppc64, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

The iproute package contains advanced IP routing and network device
configuration tools.

Herbert Xu reported that iproute can accept spoofed messages sent on the
kernel netlink interface by other users on the local machine.  This could
lead to a local denial of service attack.  The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2003-0856 to
this issue. 
 
Users of iproute should upgrade to these erratum packages, which contain a
patch that checks that netlink messages actually came from the kernel.

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.

If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the
up2date client with an updated certificate.  The latest version of
up2date is available from the Red Hat FTP site and may also be
downloaded directly from the RHN website:

https://rhn.redhat.com/help/latest-up2date.pxt

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

108573 - CAN-2003-0856 Netlink local DoS: iproute

6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm

i386:
Available from Red Hat Network: iproute-2.4.7-7.AS21.1.i386.rpm

ia64:
Available from Red Hat Network: iproute-2.4.7-7.AS21.1.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm

ia64:
Available from Red Hat Network: iproute-2.4.7-7.AS21.1.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm

i386:
Available from Red Hat Network: iproute-2.4.7-7.AS21.1.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm

i386:
Available from Red Hat Network: iproute-2.4.7-7.AS21.1.i386.rpm

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/iproute-2.4.7-11.30E.1.src.rpm

i386:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.i386.rpm

ia64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.ia64.rpm

ppc:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.ppc.rpm

ppc64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.ppc64.rpm

s390:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.s390.rpm

s390x:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.s390x.rpm

x86_64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/iproute-2.4.7-11.30E.1.src.rpm

i386:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.i386.rpm

ia64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.ia64.rpm

x86_64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/iproute-2.4.7-11.30E.1.src.rpm

i386:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.i386.rpm

ia64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.ia64.rpm

x86_64:
Available from Red Hat Network: iproute-2.4.7-11.30E.1.x86_64.rpm



7. Verification:

MD5 sum                          Package Name
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f4813cb59064095d82588402cc1ef92c 2.1AS/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm
d7560a6ed7e4476fab4fa78ec5eb8883 2.1AS/en/os/i386/iproute-2.4.7-7.AS21.1.i386.rpm
58c58f1e37d7c7807072642b6e051e6e 2.1AS/en/os/ia64/iproute-2.4.7-7.AS21.1.ia64.rpm
f4813cb59064095d82588402cc1ef92c 2.1AW/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm
58c58f1e37d7c7807072642b6e051e6e 2.1AW/en/os/ia64/iproute-2.4.7-7.AS21.1.ia64.rpm
f4813cb59064095d82588402cc1ef92c 2.1ES/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm
d7560a6ed7e4476fab4fa78ec5eb8883 2.1ES/en/os/i386/iproute-2.4.7-7.AS21.1.i386.rpm
f4813cb59064095d82588402cc1ef92c 2.1WS/en/os/SRPMS/iproute-2.4.7-7.AS21.1.src.rpm
d7560a6ed7e4476fab4fa78ec5eb8883 2.1WS/en/os/i386/iproute-2.4.7-7.AS21.1.i386.rpm
5b4dd8e2694fd2d324d1a7071514c49f 3AS/en/os/SRPMS/iproute-2.4.7-11.30E.1.src.rpm
c6eb0ec4939c28434d6411afa856559e 3AS/en/os/i386/iproute-2.4.7-11.30E.1.i386.rpm
17dcbfc6b61b931be0a9e899b25257be 3AS/en/os/ia64/iproute-2.4.7-11.30E.1.ia64.rpm
a6ad2633104c45e3fad613df21e2f236 3AS/en/os/ppc/iproute-2.4.7-11.30E.1.ppc.rpm
fd977c04da669f1eb05e7c730480112c 3AS/en/os/ppc64/iproute-2.4.7-11.30E.1.ppc64.rpm
23e4d9eef3dc968760a490a2afa350e6 3AS/en/os/s390/iproute-2.4.7-11.30E.1.s390.rpm
f2a05ac11e57504895848a1e4d70fe2f 3AS/en/os/s390x/iproute-2.4.7-11.30E.1.s390x.rpm
5ddacb8ad631563d3e1cb5d104267a80 3AS/en/os/x86_64/iproute-2.4.7-11.30E.1.x86_64.rpm
5b4dd8e2694fd2d324d1a7071514c49f 3ES/en/os/SRPMS/iproute-2.4.7-11.30E.1.src.rpm
c6eb0ec4939c28434d6411afa856559e 3ES/en/os/i386/iproute-2.4.7-11.30E.1.i386.rpm
17dcbfc6b61b931be0a9e899b25257be 3ES/en/os/ia64/iproute-2.4.7-11.30E.1.ia64.rpm
5ddacb8ad631563d3e1cb5d104267a80 3ES/en/os/x86_64/iproute-2.4.7-11.30E.1.x86_64.rpm
5b4dd8e2694fd2d324d1a7071514c49f 3WS/en/os/SRPMS/iproute-2.4.7-11.30E.1.src.rpm
c6eb0ec4939c28434d6411afa856559e 3WS/en/os/i386/iproute-2.4.7-11.30E.1.i386.rpm
17dcbfc6b61b931be0a9e899b25257be 3WS/en/os/ia64/iproute-2.4.7-11.30E.1.ia64.rpm
5ddacb8ad631563d3e1cb5d104267a80 3WS/en/os/x86_64/iproute-2.4.7-11.30E.1.x86_64.rpm


These packages are GPG signed by Red Hat for security.  Our key is
available from https://www.redhat.com/security/keys.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>


8. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0856

9. Contact:

The Red Hat security contact is <secalert redhat com>.  More contact
details at https://www.redhat.com/solutions/security/news/contact.html

Copyright 2003 Red Hat, Inc.
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