SB2023041345 - Denial of service in Junos OS PFE
Published: April 13, 2023
Security Bulletin ID
SB2023041345
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-28984)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:A/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 a use-after-free error in the Layer 2 Address Learning Manager (l2alm) of Juniper Networks Junos OS on QFX Series. A remote attacker on the local network can send specially crafted traffic to the device and crash the Packet Forwarding Engine.
Remediation
Install update from vendor's website.