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Category:   Application (Security)  >   FreeRADIUS Vendors:   FreeRADIUS Server Project
(Oracle Issues Fix for Oracle Linux) FreeRADIUS Overflows and Memory Leaks Let Remote Users Deny Service and Execute Arbitrary Code
SecurityTracker Alert ID:  1039120
SecurityTracker URL:  http://securitytracker.com/id/1039120
CVE Reference:   CVE-2017-10978, CVE-2017-10983   (Links to External Site)
Date:  Aug 10 2017
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.0.0 through 3.0.14
Description:   Multiple vulnerabilities were reported in FreeRADIUS. A remote user can cause denial of service conditions on the target system. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted RADIUS data to trigger an overflow in make_secret() and cause the target service to crash [CVE-2017-10978].

A remote user can send specially crafted RADIUS data to trigger an overflow in rad_coalesce() and execute arbitrary code on the target system [CVE-2017-10979]. The code will run with the privileges of the target service. Versions 2.0.0 through 2.2.9 are affected.

A remote user can send specially crafted DHCP data to trigger a memory leak in decode_tlv() and consume excessive memory on the target system [CVE-2017-10980]. Versions 2.0.0 through 2.2.9 are affected.

A remote user can send specially crafted DHCP data to trigger a memory leak in fr_dhcp_decode() and consume excessive memory on the target system [CVE-2017-10981]. Versions 2.0.0 through 2.2.9 are affected.

A remote user can send specially crafted DHCP data to trigger a read overflow in fr_dhcp_decode_options() and cause the target service to crash [CVE-2017-10982]. Versions 2.0.0 through 2.2.9 are affected.

A remote user can send specially crafted DHCP option 63 data to trigger a read overflow in fr_dhcp_decode_options() and cause the target service to crash [CVE-2017-10983].

Guido Vranken reported these vulnerabilities.

Impact:   A remote user can cause denial of service conditions.

A remote user can execute arbitrary code on the target system.

Solution:   Oracle has issued a fix for CVE-2017-10978 and CVE-2017-10983.

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2017-2389.html

Vendor URL:  linux.oracle.com/errata/ELSA-2017-2389.html (Links to External Site)
Cause:   Access control error, Boundary error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Jul 18 2017 FreeRADIUS Overflows and Memory Leaks Let Remote Users Deny Service and Execute Arbitrary Code



 Source Message Contents

Subject:  [El-errata] ELSA-2017-2389 Important: Oracle Linux 7 freeradius security update

Oracle Linux Security Advisory ELSA-2017-2389

http://linux.oracle.com/errata/ELSA-2017-2389.html

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
freeradius-3.0.13-8.el7_4.x86_64.rpm
freeradius-devel-3.0.13-8.el7_4.i686.rpm
freeradius-devel-3.0.13-8.el7_4.x86_64.rpm
freeradius-doc-3.0.13-8.el7_4.x86_64.rpm
freeradius-krb5-3.0.13-8.el7_4.x86_64.rpm
freeradius-ldap-3.0.13-8.el7_4.x86_64.rpm
freeradius-mysql-3.0.13-8.el7_4.x86_64.rpm
freeradius-perl-3.0.13-8.el7_4.x86_64.rpm
freeradius-postgresql-3.0.13-8.el7_4.x86_64.rpm
freeradius-python-3.0.13-8.el7_4.x86_64.rpm
freeradius-sqlite-3.0.13-8.el7_4.x86_64.rpm
freeradius-unixODBC-3.0.13-8.el7_4.x86_64.rpm
freeradius-utils-3.0.13-8.el7_4.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/freeradius-3.0.13-8.el7_4.src.rpm



Description of changes:

[3.0.13-8]
- Avoid misinterpreting zero-size malloc in data2vp_extended() fix.
- Related: Bug#1469414 CVE-2017-10984 freeradius: Out-of-bounds write in
                        data2vp_wimax()

[3.0.13-7]
- Resolves: Bug#1469409 CVE-2017-10978 freeradius: Out-of-bounds 
read/write due
                         to improper output buffer size check in 
make_secret()
- Resolves: Bug#1469413 CVE-2017-10983 freeradius: Out-of-bounds read in
                         fr_dhcp_decode() when decoding option 63
- Resolves: Bug#1469414 CVE-2017-10984 freeradius: Out-of-bounds write in
                         data2vp_wimax()
- Resolves: Bug#1469417 CVE-2017-10985 freeradius: Infinite loop and memory
                         exhaustion with 'concat' attributes
- Resolves: Bug#1469418 CVE-2017-10986 freeradius: Infinite read in
                         dhcp_attr2vp()
- Resolves: Bug#1469421 CVE-2017-10987 freeradius: Buffer over-read in
                         fr_dhcp_decode_suboptions()


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