PT-2014-4533 · Cisco · Cisco Ios Xr

Published 2014-06-11 · Updated 2016-09-07 · CVE-2014-2176

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS XR versions 4.1.2 through 5.1.1

Description A vulnerability in the parsing of malformed Internet Protocol version 6 (IPv6) packets could allow an unauthenticated, remote attacker to cause a lockup and eventual reload of a Network Processor (NP) chip and a line card processing traffic. The issue is due to insufficient logic in parsing malformed IPv6 packets. An attacker could exploit this by sending a stream of malformed IPv6 packets to the affected device, leading to a denial of service (DoS) condition.

Recommendations For Cisco IOS XR versions 4.1.2 through 5.1.1, update to a fixed software version to address this vulnerability.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2014-2176

Affected Products

Cisco Ios Xr

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2014-2176 · Security Note
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140611-ipv6 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140611-ipv6 · Vendor Advisory
• http://securityfocus.com/bid/68005 · Note
• http://secunia.com/advisories/58722 · Note
• http://securitytracker.com/id/1030400 · Note