Use-after-free in Junos OS - CVE-2023-28984
Published: April 13, 2023
Vulnerability identifier: #VU75097
CSH Severity: Medium
CVSS v4: 7.1 [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]
CVE-ID: CVE-2023-28984
CWE-ID: CWE-416
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Junos OS
How to mitigate CVE-2023-28984
Install updates from vendor's website.
Junos OS - addressed in versions 19.4R3-S10, 20.2R3-S7, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.4R3, 22.1R3, 22.2R2, 22.3R1