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Cisco IOS Software and IOS XE Software TCP Packet Memory Leak Vulnerability

Information

Severity

Severity

High

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

7.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

5 years ago

Summary

A vulnerability in the TCP input module of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak and eventual reload of the affected device. The vulnerability is due to improper handling of certain crafted packet sequences used in establishing a TCP three-way handshake. An attacker could exploit this vulnerability by sending a crafted sequence of TCP packets while establishing a three-way handshake. A successful exploit could allow the attacker to cause a memory leak and eventual reload of the affected device. There are no workarounds for this vulnerability. Cisco has released software updates that address this vulnerability. This advisory is available at the references. Note: The March 25, 2015, Cisco IOS & XE Software Security Advisory bundled publication includes seven Cisco Security Advisories. The advisories address vulnerabilities in Cisco IOS Software and Cisco IOS XE Software. Individual publication links are in Cisco Event Response: Semiannual Cisco IOS & XE Software Security Advisory Bundled Publication at the references.

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)