| 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. |
|---|---|
| Summary | 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 . |
| Publication Date | March 28, 2009, 1:30 a.m. |
| Registration Date | Jan. 29, 2021, 1:15 p.m. |
| Last Update | Aug. 17, 2017, 10:29 a.m. |
| CVSS2.0 : HIGH | |
| Score | 7.1 |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:C |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 中 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | なし |
| 完全性への影響(I) | なし |
| 可用性への影響(A) | 高 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:o:cisco:ios:12.4t:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:cisco:ios:12.4xz:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:cisco:ios:12.4ya:*:*:*:*:*:*:* | |||||