CVE-2018-0136

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Summary

CVECVE-2018-0136
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-01-31 20:29:00 UTC
Updated2020-09-04 17:14:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Asr 9001 - All All All
Hardware Cisco Asr 9001 - All All All
Hardware Cisco Asr 9006 - All All All
Hardware Cisco Asr 9006 - All All All
Hardware Cisco Asr 9010 - All All All
Hardware Cisco Asr 9010 - All All All
Hardware Cisco Asr 9904 - All All All
Hardware Cisco Asr 9904 - All All All
Hardware Cisco Asr 9906 - All All All
Hardware Cisco Asr 9906 - All All All
Hardware Cisco Asr 9910 - All All All
Hardware Cisco Asr 9910 - All All All
Hardware Cisco Asr 9912 - All All All
Hardware Cisco Asr 9912 - All All All
Hardware Cisco Asr 9922 - All All All
Hardware Cisco Asr 9922 - All All All
Operating System Cisco Ios Xr 5.3.4 All All All
Operating System Cisco Ios Xr 5.3.4 All All All

References

ReferenceSourceLinkTags
Cisco ASR 9000 Series Router IOS XR IPv6 Packet Processing Flaw Lets Remote Users Cause the Target System to Reload - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
Cisco IOS XR Software CVE-2018-0136 Denial of Service Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
Cisco Aggregation Services Router 9000 Series IPv6 Fragment Header Denial of Service Vulnerability CONFIRM tools.cisco.com Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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