[NEWS] Quagga bgpd DoS Vulnerability

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Quagga bgpd DoS Vulnerability
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SUMMARY

<http://www.quagga.net/> Quagga is "a routing software suite. Quagga bgpd
implements the BGP routing protocol". There are two vulnerabilities in the
Quagga prodcut. In both vulnerabilies, the attacker must be a configured
peer.

DETAILS

Vulnerable Systems:
* Quagga version 0.99.8

Immune Systems:
* Quagga version 0.99.9

Two issues have been discovered in Quagga:
* A BGP OPEN message with an invalid message length and a valid option
parameters length (or vice versa) from a configured peer can cause a
assertion failure in the stream library.

* An empty or malformed COMMUNITIES attribute in an UPDATE from a
configured peer can cause a NULL pointer dereference when the attribute is
printed if "debug bgp updates" is enabled.

Vendor Response / Solution:
Update to 0.99.9, available from <http://www.quagga.net/>

http://www.quagga.net/

History:
August 29, 2007 - First contact with vendor
August 30, 2007 - Vendor acknowledges vulnerability
August 31, 2007 - Second issue reported
September 1, 2007 - Vendor acknowledges second vulnerability
September 7, 2007 - Vendor releases 0.99.9
September 12, 2007 - Advisory released

ADDITIONAL INFORMATION

The information has been provided by MuSecurity.
The original article can be found at:
<http://labs.musecurity.com/wp-content/uploads/2007/09/mu-200709-01.txt>

http://labs.musecurity.com/wp-content/uploads/2007/09/mu-200709-01.txt

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