58333 : Cisco IOS Cisco Express Forwarding Malformed Packet Handling Remote DoS (2009-2872)
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Timeline

Disclosure Date
2009-09-23

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-2872" target="_blank">CVE</a>)</em> : Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Upgrade
Disclosure: Vendor Verified

Products

Unknown or Incomplete

References

CVE ID: 2009-2872 (see also: NVD)
Bugtraq ID: 36500
Secunia Advisory ID: 36835
Related OSVDB ID: 58334 58335 58336 58337 58338 58339 58340 58341 58342 58343
Vendor Specific News/Changelog Entry: http://tools.cisco.com/security/center/viewAlert.x?alertId=18893
http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.html
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html
Other Advisory URL: http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8115.shtml
Vendor Specific Advisory URL: http://www.cisco.com/warp/public/707/cisco-sa-20090923-tunnels.shtml
News Article: http://www.gcn.com/Articles/2009/09/25/Cisco-denial-of-service-worries.aspx

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2009-09-29 | Disagree?

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