SB2023041343 - Denial of service in Junos OS PFE
Published: April 13, 2023
Security Bulletin ID
SB2023041343
CSH 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 vulnerability.
1) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2023-28976)
CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling in the packet forwarding engine (pfe). If specific traffic is received on MX Series and its rate exceeds the respective DDoS protection limit the ingress PFE will crash and restart.
Remediation
Install update from vendor's website.