CVE-2006-4650

Description

Cisco IOS 12.0, 12.1, and 12.2, when GRE IP tunneling is used and the RFC2784 compliance fixes are missing, does not verify the offset field of a GRE packet during decapsulation, which leads to an integer overflow that references data from incorrect memory locations, which allows remote attackers to inject crafted packets into the routing queue, possibly bypassing intended router ACLs.

2.6

CVSS

Severity: Low

CVSS 2.0 •

EPSS 0.49%

Vendor Advisory cisco.com Vendor Advisory phenoelit.de

Affected: n/a n/a

References

Link	Tags
http://www.vupen.com/english/advisories/2006/3502	vdb entry
http://securitytracker.com/id?1016799	vdb entry
http://www.osvdb.org/28590	vdb entry
http://www.securityfocus.com/archive/1/445322/100/0/threaded	mailing list
http://www.phenoelit.de/stuff/CiscoGRE.txt	vendor advisory
http://secunia.com/advisories/21783	third party advisory
http://securityreason.com/securityalert/1526	third party advisory
http://www.securityfocus.com/bid/19878	vdb entry
http://www.cisco.com/en/US/tech/tk827/tk369/tsd_technology_security_response09186a008072cd7b.html	vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5713	vdb entry signature
https://exchange.xforce.ibmcloud.com/vulnerabilities/28786	vdb entry

Frequently Asked Questions

What is the severity of CVE-2006-4650?: CVE-2006-4650 has been scored as a low severity vulnerability.
How to fix CVE-2006-4650?: To fix CVE-2006-4650, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2006-4650 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2006-4650 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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