CVE-2009-0635

Severity Score

7.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Perdida de memoria en la funcionalidad de encapsulado de Cisco Tunneling Control Protocol (cTCP) en Cisco IOS v12.4, cuando se ha habilitado un servidor Easy VPN (conocido como EZVPN), permite a atacantes remotos provocar una denegación de servicio (consumo de memoria y caída del dispositivo) mediante una secuencia de paquetes TCP.

*Credits: N/A

CVSS Scores

NISTv2 7.1

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-02-18 CVE Reserved
2009-03-26 CVE Published
2024-07-24 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/34246	Vdb Entry
http://www.securitytracker.com/id?1021895	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/49417	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90459.shtml	2017-08-17
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml	2017-08-17

URL	Date	SRC
http://secunia.com/advisories/34438	2017-08-17
http://www.vupen.com/english/advisories/2009/0851	2017-08-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.4t Search vendor "Cisco" for product "Ios" and version "12.4t"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.4xz Search vendor "Cisco" for product "Ios" and version "12.4xz"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.4ya Search vendor "Cisco" for product "Ios" and version "12.4ya"		-		Affected