TI-2018-00377 Aliases CVE-2018-0418 GHSA-w4jj-rqg4-f8cq

Uncontrolled resource consumption in Cisco ASR 9000 Series Aggregation Services Router…

MEDIUM 50CWE-400Published 2018-08-15 · Updated 2024-11-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

A vulnerability in the Local Packet Transport Services (LPTS) feature set of Cisco ASR 9000 Series Aggregation Services Router Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input and validation checking on certain Precision Time Protocol (PTP) ingress traffic to an affected device. An attacker could exploit this vulnerability by injecting malformed traffic into an affected device. A successful exploit could allow the attacker to cause services on the device to become unresponsive, resulting in a DoS condition. Cisco Bug IDs: CSCvj22858.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.03914 90th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	ASR 9000 Series Aggregation Services Router Software	all versions	—	No fix listed	CNA

ASR 9000 Series Aggregation Services Router Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 11

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios_xr::::::::	up to 6.3.3_base	Vulnerable	Cisco
cpe:2.3:h:cisco:asr_9000v:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9001:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9006:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9010:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9901:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9904:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9906:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9910:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:h:cisco:asr_9912:-:::::::*	not specified by NVD	Running on	Cisco

cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* Versions up to 6.3.3_base Vulnerable ·Cisco
cpe:2.3:h:cisco:asr_9000v:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Show 1 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:h:cisco:asr_9922:-:::::::*	not specified by NVD	Running on	Cisco

cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0418
2026-10-03 Alias added: GHSA-w4jj-rqg4-f8cq

References

Advisory 1

20180815 Cisco ASR 9000 Series Aggregation Services Routers Precision Time Protocol Denial of Service Vulnerability

TI-2020-02680 Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability KEVCVSS 3.1HIGH 8.8
TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
TI-2020-03113 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities KEVCVSS 3.1HIGH 8.6
TI-2020-03110 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability KEVCVSS 3.1HIGH 8.6
TI-2018-00142 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.0
TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5

See all 199 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences