SB2020012414 - Denial of service in Cisco IOS XR
Published: January 24, 2020
Security Bulletin ID
SB2020012414
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2019-16027)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the Intermediate System–to–Intermediate System (IS–IS) process. A remote authenticated attacker can send a specially crafted SNMP request and cause a denial of service condition in the IS–IS process.
Remediation
Install update from vendor's website.