__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
freeradius Security Update
[RHSA-2006:0271-12]
April 13, 2006 18:00 GMT Number Q-175
[REVISED 05 June 2006]
______________________________________________________________________________
PROBLEM: A bug was found in the way FreeRADIUS authenticates users via
the MSCHAP V2 protocol and also in the way FreeRADIUS logs SQL
errors from the sql_unixodbc module.
PLATFORM: Red Hat Enterprise Linux AS (v. 3 and v. 4)
Red Hat Enterprise Linux ES (v. 3 and v. 4)
DAMAGE: It is possible for a remote attacker to authenticate as a
victim, or an attacker could cause FreeRADIUS to crash or
execute arbitrary code.
SOLUTION: Apply current patches.
______________________________________________________________________________
VULNERABILITY The risk is LOW - It is possible for a remote attacker to
ASSESSMENT: authenticate as a victim, or an attacker could cause FreeRADIUS
to crash or execute arbitrary code.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-175.shtml
ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2006-0271.html
ADDITIONAL LINKS: Debian Security Advisory 1089-1
http://www.debian.org/security/2006/dsa-1089
CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=
CVE-2005-4744, CVE-2006-1354
______________________________________________________________________________
REVISION HISTORY:
06/05/2006 - added a link to Debian Security Advisory 1089-1
[***** Start RHSA-2006:0271-12 *****]
Important: freeradius security update
Advisory: RHSA-2006:0271-12
Type: Security Advisory
Issued on: 2006-04-04
Last updated on: 2006-04-13
Affected Products: Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
CVEs (cve.mitre.org): CVE-2005-4744
CVE-2006-1354
Details
Updated freeradius packages that fix an authentication weakness are now
available.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
FreeRADIUS is a high-performance and highly configurable free RADIUS server
designed to allow centralized authentication and authorization for a network.
A bug was found in the way FreeRADIUS authenticates users via the MSCHAP V2
protocol. It is possible for a remote attacker to authenticate as a victim
by sending a malformed MSCHAP V2 login request to the FreeRADIUS server.
(CVE-2006-1354)
Please note that FreeRADIUS installations not using the MSCHAP V2 protocol
for authentication are not vulnerable to this issue.
A bug was also found in the way FreeRADIUS logs SQL errors from the
sql_unixodbc module. It may be possible for an attacker to cause FreeRADIUS
to crash or execute arbitrary code if they are able to manipulate the SQL
database FreeRADIUS is connecting to. (CVE-2005-4744)
Users of FreeRADIUS should update to these erratum packages, which contain
backported patches and are not vulnerable to these issues.
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via Red Hat Network. 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.
Updated packages
Red Hat Enterprise Linux AS (v. 3)
--------------------------------------------------------------------------------
SRPMS:
freeradius-1.0.1-2.RHEL3.2.src.rpm bfc9e019ba3dd3ee67a4156ff37f467c
IA-32:
freeradius-1.0.1-2.RHEL3.2.i386.rpm b4969ec213ec03c6fc693a1d84f2029c
IA-64:
freeradius-1.0.1-2.RHEL3.2.ia64.rpm 734b8d8314d7bcd9fa122053bf1d495d
PPC:
freeradius-1.0.1-2.RHEL3.2.ppc.rpm 21188abdd2a98f81d806a29a77fea928
s390:
freeradius-1.0.1-2.RHEL3.2.s390.rpm 8429b0806d6e2baadca6ac94312dad8b
s390x:
freeradius-1.0.1-2.RHEL3.2.s390x.rpm 0ac7a21d7bedba7d6b1cf63861a02e31
x86_64:
freeradius-1.0.1-2.RHEL3.2.x86_64.rpm 7eaf8db1f720773cf28479dd6f57fdb0
Red Hat Enterprise Linux AS (v. 4)
--------------------------------------------------------------------------------
SRPMS:
freeradius-1.0.1-3.RHEL4.3.src.rpm c6917a0d98ac04e34db4294217a389fb
IA-32:
freeradius-1.0.1-3.RHEL4.3.i386.rpm 1121b8e53033f5580889eaab5fbd822e
freeradius-mysql-1.0.1-3.RHEL4.3.i386.rpm 6b1ed7b9c10178db478963f9b4b5986a
freeradius-postgresql-1.0.1-3.RHEL4.3.i386.rpm 791f052034f7a13f2b07f384e83795f2
freeradius-unixODBC-1.0.1-3.RHEL4.3.i386.rpm 046fb51db100364dbe3dc856e7dca02c
IA-64:
freeradius-1.0.1-3.RHEL4.3.ia64.rpm 15db5d25efd4ecf030615ccf2552b04d
freeradius-mysql-1.0.1-3.RHEL4.3.ia64.rpm 9fd7df598cffcfdc21012296d3e5eca9
freeradius-postgresql-1.0.1-3.RHEL4.3.ia64.rpm 6e813082c69c2c494daa435767e54dbd
freeradius-unixODBC-1.0.1-3.RHEL4.3.ia64.rpm 8d1bcdc20817ac37be901cd2c7fe7088
PPC:
freeradius-1.0.1-3.RHEL4.3.ppc.rpm 0a3d9b8f2d09b1b13259ea99acff91b7
freeradius-mysql-1.0.1-3.RHEL4.3.ppc.rpm e4a7578d745c69f656d8d840307c139f
freeradius-postgresql-1.0.1-3.RHEL4.3.ppc.rpm e45ba7af692792d8bc52db7e0f6e0deb
freeradius-unixODBC-1.0.1-3.RHEL4.3.ppc.rpm 9d693f9e452fd06d73aed9a1d5740ddf
s390:
freeradius-1.0.1-3.RHEL4.3.s390.rpm cc607bb4dfb35128ed7bef2a74e40aa8
freeradius-mysql-1.0.1-3.RHEL4.3.s390.rpm 42b226f640a1a4224ef0c27bc7bf5527
freeradius-postgresql-1.0.1-3.RHEL4.3.s390.rpm ebefbb200863e9bfeb775c7b104934cb
freeradius-unixODBC-1.0.1-3.RHEL4.3.s390.rpm 4b43bb86ba1d6dc6953bb6dc3d67a147
s390x:
freeradius-1.0.1-3.RHEL4.3.s390x.rpm 74d462262538062aad16e9d8cea6eb18
freeradius-mysql-1.0.1-3.RHEL4.3.s390x.rpm a722d74a53facc3b431ec2ed55481b61
freeradius-postgresql-1.0.1-3.RHEL4.3.s390x.rpm 53088f0fbfd0e9b9c1ccd7db0bcff0ad
freeradius-unixODBC-1.0.1-3.RHEL4.3.s390x.rpm 8b6856b542505d85320bf176beb623c9
x86_64:
freeradius-1.0.1-3.RHEL4.3.x86_64.rpm d04afcde9543c934bbb44b3a8cf1ad53
freeradius-mysql-1.0.1-3.RHEL4.3.x86_64.rpm 9734492926441eddcd2740f1d19b537c
freeradius-postgresql-1.0.1-3.RHEL4.3.x86_64.rpm ab8051bbcb05c66af19e5a89a2349deb
freeradius-unixODBC-1.0.1-3.RHEL4.3.x86_64.rpm 400250cfddddc9e095d581e2ae87b789
Red Hat Enterprise Linux ES (v. 3)
--------------------------------------------------------------------------------
SRPMS:
freeradius-1.0.1-2.RHEL3.2.src.rpm bfc9e019ba3dd3ee67a4156ff37f467c
IA-32:
freeradius-1.0.1-2.RHEL3.2.i386.rpm b4969ec213ec03c6fc693a1d84f2029c
IA-64:
freeradius-1.0.1-2.RHEL3.2.ia64.rpm 734b8d8314d7bcd9fa122053bf1d495d
x86_64:
freeradius-1.0.1-2.RHEL3.2.x86_64.rpm 7eaf8db1f720773cf28479dd6f57fdb0
Red Hat Enterprise Linux ES (v. 4)
--------------------------------------------------------------------------------
SRPMS:
freeradius-1.0.1-3.RHEL4.3.src.rpm c6917a0d98ac04e34db4294217a389fb
IA-32:
freeradius-1.0.1-3.RHEL4.3.i386.rpm 1121b8e53033f5580889eaab5fbd822e
freeradius-mysql-1.0.1-3.RHEL4.3.i386.rpm 6b1ed7b9c10178db478963f9b4b5986a
freeradius-postgresql-1.0.1-3.RHEL4.3.i386.rpm 791f052034f7a13f2b07f384e83795f2
freeradius-unixODBC-1.0.1-3.RHEL4.3.i386.rpm 046fb51db100364dbe3dc856e7dca02c
IA-64:
freeradius-1.0.1-3.RHEL4.3.ia64.rpm 15db5d25efd4ecf030615ccf2552b04d
freeradius-mysql-1.0.1-3.RHEL4.3.ia64.rpm 9fd7df598cffcfdc21012296d3e5eca9
freeradius-postgresql-1.0.1-3.RHEL4.3.ia64.rpm 6e813082c69c2c494daa435767e54dbd
freeradius-unixODBC-1.0.1-3.RHEL4.3.ia64.rpm 8d1bcdc20817ac37be901cd2c7fe7088
x86_64:
freeradius-1.0.1-3.RHEL4.3.x86_64.rpm d04afcde9543c934bbb44b3a8cf1ad53
freeradius-mysql-1.0.1-3.RHEL4.3.x86_64.rpm 9734492926441eddcd2740f1d19b537c
freeradius-postgresql-1.0.1-3.RHEL4.3.x86_64.rpm ab8051bbcb05c66af19e5a89a2349deb
freeradius-unixODBC-1.0.1-3.RHEL4.3.x86_64.rpm 400250cfddddc9e095d581e2ae87b789
(The unlinked packages above are only available from the Red Hat Network)
Bugs fixed (see bugzilla for more information)
167676 - CVE-2005-4744 Multiple freeradius security issues
186083 - CVE-2006-1354 FreeRADIUS authentication bypass
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4744
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1354
http://www.redhat.com/security/updates/classification/#important
--------------------------------------------------------------------------------
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how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package
The Red Hat security contact is secalert@redhat.com. More contact details at
http://www.redhat.com/security/team/contact/
[***** End RHSA-2006:0271-12 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Red Hat for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
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