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Date: Wed Sep 12 2007 - 16:31:50 CDT
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Quagga bgpd Remote Denial of Service Vulnerability [MU-200709-01]
September 12, 2007
Quagga is a routing software suite. Quagga bgpd implements the BGP
There are two vulnerabilities. In both vulnerabilies, the attacker
must be a configured peer.
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/
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
This vulnerability was discovered by the Mu Security research team.
Mu Security offers a new class of security analysis system, delivering a
rigorous and streamlined methodology for verifying the robustness and security
readiness of any IP-based product or application. Founded by the pioneers of
intrusion detection and prevention technology, Mu Security is backed by
preeminent venture capital firms that include Accel Partners, Benchmark
Capital and DAG Ventures. The company is headquartered in Sunnyvale, CA. For
more information, visit the company's website at http://www.musecurity.com.
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