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FreeRADIUS Two Denial of Service Vulnerabilities

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Release Date:  2010-10-01    Last Update:  2010-10-12    Views:  2,541

Secunia Advisory SA41621

Where:

From local network

Impact:

DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Two vulnerabilities have been reported in FreeRADIUS, which can be exploited by malicious people to cause a DoS (Denial of Service).

1) An error when processing requests queued for more than 30 seconds in main/event.c can be exploited to cause the process to crash by sending high volume of requests for an extended period of time.

2) An error when processing DHCP requests with the "Relay Agent Information" option (82) in lib/dhcp.c can be exploited to cause an infinite loop in the process denying further requests via a packet with multiple sub-options.

The vulnerabilities are reported in version 2.1.9. Other versions may also be affected.


Solution:
Update to version 2.1.10.

Provided and/or discovered by:
Reported in a bug report by:
1) Florence Faure
2) Ilya A. Masandilov

Original Advisory:
http://freeradius.org/press/index.html#2.1.10
https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=35
https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=77

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: FreeRADIUS Two Denial of Service Vulnerabilities

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