SB2023101764 - Denial of service in Junos OS pfe
Published: October 17, 2023
Security Bulletin ID
SB2023101764
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2023-44183)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation error in the VxLAN packet forwarding engine (PFE) when multiple devices indicate that FPC0 has gone missing when issuing a show chassis fpc command. A remote attacker on the local network can perform a denial of service (DoS) attack.
The vulnerability affects QFX5000 and EX4600 series devices.
Remediation
Install update from vendor's website.