SB2018081615 - Denial of service in Cisco ASR 9000 Series Aggregation Services Routers
Published: August 16, 2018
Security Bulletin ID
SB2018081615
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2018-0418)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists in the Local Packet Transport Services (LPTS) feature set due to lack of input and validation checking on certain Precision Time Protocol (PTP) ingress traffic. A remote attacker can inject malformed traffic into and cause services on the device to become unresponsive.
Remediation
Install update from vendor's website.