SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   Application (Generic)  >   udev Vendors:   kernel.org
(Red Hat Issues Fix) udev NETLINK Message Validation Error Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1022069
SecurityTracker URL:  http://securitytracker.com/id/1022069
CVE Reference:   CVE-2009-1185   (Links to External Site)
Date:  Apr 16 2009
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in udev. A local user can obtain elevated privileges on the target system.

A local user can send NETLINK messages to gain root privileges on the target system.

The vulnerability resides in 'udev/lib/libudev-monitor.c'.

Impact:   A local user can obtain root privileges on the target system.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2009-0427.html

Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  5

Message History:   This archive entry is a follow-up to the message listed below.
Apr 16 2009 udev NETLINK Message Validation Error Lets Local Users Gain Elevated Privileges



 Source Message Contents

Subject:  [RHSA-2009:0427-01] Important: udev security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: udev security update
Advisory ID:       RHSA-2009:0427-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2009-0427.html
Issue date:        2009-04-16
CVE Names:         CVE-2009-1185 
=====================================================================

1. Summary:

Updated udev packages that fix one security issue are now available for Red
Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

udev provides a user-space API and implements a dynamic device directory,
providing only the devices present on the system. udev replaces devfs in
order to provide greater hot plug functionality. Netlink is a datagram
oriented service, used to transfer information between kernel modules and
user-space processes.

It was discovered that udev did not properly check the origin of Netlink
messages. A local attacker could use this flaw to gain root privileges via
a crafted Netlink message sent to udev, causing it to create a
world-writable block device file for an existing system block device (for
example, the root file system). (CVE-2009-1185)

Red Hat would like to thank Sebastian Krahmer of the SUSE Security Team for
responsibly reporting this flaw.

Users of udev are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
update, the udevd daemon will be restarted automatically.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

495051 - CVE-2009-1185 udev: Uncheck origin of NETLINK messages

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/udev-095-14.20.el5_3.src.rpm

i386:
libvolume_id-095-14.20.el5_3.i386.rpm
udev-095-14.20.el5_3.i386.rpm
udev-debuginfo-095-14.20.el5_3.i386.rpm

x86_64:
libvolume_id-095-14.20.el5_3.i386.rpm
libvolume_id-095-14.20.el5_3.x86_64.rpm
udev-095-14.20.el5_3.x86_64.rpm
udev-debuginfo-095-14.20.el5_3.i386.rpm
udev-debuginfo-095-14.20.el5_3.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/udev-095-14.20.el5_3.src.rpm

i386:
libvolume_id-devel-095-14.20.el5_3.i386.rpm
udev-debuginfo-095-14.20.el5_3.i386.rpm

x86_64:
libvolume_id-devel-095-14.20.el5_3.i386.rpm
libvolume_id-devel-095-14.20.el5_3.x86_64.rpm
udev-debuginfo-095-14.20.el5_3.i386.rpm
udev-debuginfo-095-14.20.el5_3.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/udev-095-14.20.el5_3.src.rpm

i386:
libvolume_id-095-14.20.el5_3.i386.rpm
libvolume_id-devel-095-14.20.el5_3.i386.rpm
udev-095-14.20.el5_3.i386.rpm
udev-debuginfo-095-14.20.el5_3.i386.rpm

ia64:
libvolume_id-095-14.20.el5_3.ia64.rpm
libvolume_id-devel-095-14.20.el5_3.ia64.rpm
udev-095-14.20.el5_3.ia64.rpm
udev-debuginfo-095-14.20.el5_3.ia64.rpm

ppc:
libvolume_id-095-14.20.el5_3.ppc.rpm
libvolume_id-095-14.20.el5_3.ppc64.rpm
libvolume_id-devel-095-14.20.el5_3.ppc.rpm
libvolume_id-devel-095-14.20.el5_3.ppc64.rpm
udev-095-14.20.el5_3.ppc.rpm
udev-debuginfo-095-14.20.el5_3.ppc.rpm
udev-debuginfo-095-14.20.el5_3.ppc64.rpm

s390x:
libvolume_id-095-14.20.el5_3.s390.rpm
libvolume_id-095-14.20.el5_3.s390x.rpm
libvolume_id-devel-095-14.20.el5_3.s390.rpm
libvolume_id-devel-095-14.20.el5_3.s390x.rpm
udev-095-14.20.el5_3.s390x.rpm
udev-debuginfo-095-14.20.el5_3.s390.rpm
udev-debuginfo-095-14.20.el5_3.s390x.rpm

x86_64:
libvolume_id-095-14.20.el5_3.i386.rpm
libvolume_id-095-14.20.el5_3.x86_64.rpm
libvolume_id-devel-095-14.20.el5_3.i386.rpm
libvolume_id-devel-095-14.20.el5_3.x86_64.rpm
udev-095-14.20.el5_3.x86_64.rpm
udev-debuginfo-095-14.20.el5_3.i386.rpm
udev-debuginfo-095-14.20.el5_3.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1185
http://www.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2009 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

iD8DBQFJ54p0XlSAg2UNWIIRAhPcAJ92WaPBDHgTirWgXO8esrlNP8RJTwCfdhsX
twaSC4F0wSGZgdg2UEGk704=
=1UHg
-----END PGP SIGNATURE-----


-- 
Enterprise-watch-list mailing list
Enterprise-watch-list@redhat.com
https://www.redhat.com/mailman/listinfo/enterprise-watch-list

 
 


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2020, SecurityGlobal.net LLC