A vulnerability in the IPv6 subsystem of Cisco IOS XR Software Release 5.3.4 for the Cisco Aggregation Services Router (ASR) 9000 Series could allow an unauthenticated, remote attacker to trigger a reload of one or more Trident-based line cards, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect handling of IPv6 packets with a fragment header extension. An attacker could exploit this vulnerability by sending IPv6 packets designed to trigger the issue either to or through the Trident-based line card. A successful exploit could allow the attacker to trigger a reload of Trident-based line cards, resulting in a DoS during the period of time the line card takes to restart. This vulnerability affects Cisco Aggregation Services Router (ASR) 9000 Series when the following conditions are met: The router is running Cisco IOS XR Software Release 5.3.4, and the router has installed Trident-based line cards that have IPv6 configured. A software maintenance upgrade (SMU) has been made available that addresses this vulnerability. The fix has also been incorporated into service pack 7 for Cisco IOS XR Software Release 5.3.4. Cisco Bug IDs: CSCvg46800.
References
Link | Resource |
---|---|
http://www.securityfocus.com/bid/102905 | Third Party Advisory VDB Entry |
http://www.securitytracker.com/id/1040315 | Third Party Advisory VDB Entry |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180131-ipv6 | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
AND |
|
History
No history.
Information
Published : 2018-01-31 20:29
Updated : 2024-02-28 16:25
NVD link : CVE-2018-0136
Mitre link : CVE-2018-0136
CVE.ORG link : CVE-2018-0136
JSON object : View
Products Affected
cisco
- asr_9010
- ios_xr
- asr_9906
- asr_9006
- asr_9910
- asr_9912
- asr_9904
- asr_9001
- asr_9922
CWE