Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.
2009-03-27T16:30:01.967
2025-04-09T00:30:58.490
Deferred
CVSSv2: 9.0 (HIGH)
AV:N/AC:L/Au:N/C:P/I:P/A:C
10.0
8.5
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.3 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |
Operating System | cisco | cisco_ios | 12.4 | Yes |