SB2023101738 - Denial of service in Junos OS and Junos OS Evolved RPD
Published: October 17, 2023
Security Bulletin ID
SB2023101738
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) Improper handling of exceptional conditions (CVE-ID: CVE-2023-44186)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of exceptional conditions in AS PATH processing when the router has Non-Stop Routing (NSR) enabled. A remote non-authenticated attacker can send a BGP update message with an AS PATH containing a large number of 4-byte ASes and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.