ID CVE-2009-0635
Summary 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. Per: http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml Obtaining Fixed Software Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html , or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml .
References
Vulnerable Configurations
  • cpe:2.3:o:cisco:ios:12.4t:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:ios:12.4t:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios:12.4xz:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:ios:12.4xz:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios:12.4ya:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:ios:12.4ya:*:*:*:*:*:*:*
CVSS
Base: 7.1 (as of 17-08-2017 - 01:29)
Impact:
Exploitability:
CWE CWE-399
CAPEC
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE COMPLETE
cvss-vector via4 AV:N/AC:M/Au:N/C:N/I:N/A:C
refmap via4
bid 34246
cisco 20090325 Cisco IOS cTCP Denial of Service Vulnerability
confirm http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml
sectrack 1021895
secunia 34438
vupen ADV-2009-0851
xf ios-ctcp-dos(49417)
Last major update 17-08-2017 - 01:29
Published 27-03-2009 - 16:30
Last modified 17-08-2017 - 01:29
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