CVE-2009-0635
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.1 HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C
- EPSS
- 2.51% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- cisco/ios
- Source
- psirt@cisco.com
References
- http://secunia.com/advisories/34438Vendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90459.shtmlPatch, Vendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/34246
- http://www.securitytracker.com/id?1021895
- http://www.vupen.com/english/advisories/2009/0851Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49417
- http://secunia.com/advisories/34438Vendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90459.shtmlPatch, Vendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/34246
- http://www.securitytracker.com/id?1021895
- http://www.vupen.com/english/advisories/2009/0851Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49417
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.