Description
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.
References (8)
Core 8
Core References
Vendor Advisory x_refsource_confirm
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12092
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/34239
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/34438
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://securitytracker.com/id?1021896
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/49427
Vendor Advisory vendor-advisory
x_refsource_cisco
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90424.shtml
Vendor Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2009/0851
Scores
EPSS
0.0192
EPSS Percentile
77.5%
Details
CWE
CWE-200
Status
published
Products (2)
cisco/cisco_ios
12.3 (47 CPE variants)
cisco/cisco_ios
12.4 (3 CPE variants)
Published
Mar 27, 2009
Tracked Since
Feb 18, 2026