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Cisco Adaptive Security Appliance VPN Memory Block Exhaustion Vulnerability

Information

Severity

Severity

Medium

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

3 years ago

Summary

A vulnerability in the IPsec code of Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, remote attacker to cause the depletion of a memory block, which may cause the system to stop forwarding traffic and result in a denial of service (DoS) condition. The vulnerability is due to an error in the implementation of ICMP error handling for IPsec packets. An attacker could exploit this vulnerability by sending crafted packets through an established LAN-to-LAN or Remote Access VPN tunnel. A successful exploit could allow the attacker to deplete available memory and cause system instability or cause the system to stop forwarding traffic. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)