Cisco IOS 9.x, 10.x, 11.x, and 12.x and IOS XR 2.0.x, 3.0.x, and 3.2.x allows remote attackers to cause a denial of service or execute arbitrary code via a crafted IP option in the IP header in a (1) ICMP, (2) PIMv2, (3) PGM, or (4) URD packet.

Cisco routers and switches running Cisco IOS XR software may be vulnerable to a remotely exploitable crafted IP option Denial of Service (DoS) attack.  Exploitation of the vulnerability may potentially allow for arbitrary code execution.  The vulnerability may be exploited after processing an Internet Control Message Protocol (ICMP) packet, Protocol Independent Multicast version 2 (PIMv2) packet, Pragmatic General Multicast (PGM) packet, or URL Rendezvous Directory (URD) packet containing a specific crafted IP option in the packet\'s IP header.  No other IP protocols are affected by this issue.  Cisco has made free software available to address this vulnerability for affected customers.

Cisco routers and switches running Cisco IOS or Cisco IOS XR software may be vulnerable to a remotely exploitable crafted IP option Denial of Service (DoS) attack. Exploitation of the vulnerability may potentially allow for arbitrary code execution. The vulnerability may be exploited after processing an Internet Control Message Protocol (ICMP) packet, Protocol Independent Multicast version 2 (PIMv2) packet, Pragmatic General Multicast (PGM) packet, or URL Rendezvous Directory (URD) packet containing a specific crafted IP option in the packet's IP header. No other IP protocols are affected by this issue.
Cisco has made free software available to address this vulnerability for affected customers.

The remote version of IOS contains a flaw that could cause the remote router to crash when processing specially malformed IP packets.

An attacker might use these flaws to execute arbitrary code on the remote routers.

ID	Name	Product	Family	Severity
71431	Crafted IP Option Vulnerability (cisco-sa-20070124-crafted-ip-option)	Nessus	CISCO	critical
48996	Crafted IP Option Vulnerability	Nessus	CISCO	critical
24741	Cisco Multiple Devices Crafted IP Option Remote Code Execution (CSCeh52410)	Nessus	CISCO	critical

Detections

Analytics

CVE-2007-0480

critical

Tenable Plugins

critical

critical

critical