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Status published
High
CVE-2009-0635
Memory leak in the Cisco Tunneling Control Protocol (cTCP) encapsulation...
Vulnerability Description
Memory leak in the Cisco Tunneling Control Protocol (cTCP) encapsulation feature in Cisco IOS 12.4, when an Easy VPN (aka EZVPN) server is enabled, allows remote attackers to cause a denial of service (memory consumption and device crash) via a sequence of TCP packets.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90459.shtml
- http://secunia.com/advisories/34438
- http://www.securityfocus.com/bid/34246
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49417
- http://www.securitytracker.com/id?1021895
- http://www.vupen.com/english/advisories/2009/0851
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Affected Vendor
cisco
View all reports →Affected Software
ios
Vulnerable Versions:
12.4t, 12.4xz, 12.4ya
Timeline
Official Publish:
March 27th, 2009
Last Modified:
August 7th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.