Vulnerability identifier: #VU94351
Vulnerability risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Junos OS Evolved
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation error in the Packet Forwarding Engine (PFE). A local user can cause a Denial of Service (DoS).
When a specific "clear" command is run, the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) crashes and restarts.
The crash impacts all traffic going through the FPCs, causing a DoS.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Junos OS Evolved: 20.4R1-EVO - 20.4R3-S8-EVO, 21.2-EVO - 21.2R3-S6-EVO, 21.3-EVO - 21.3R3-S4-EVO, 21.4R1-EVO - 21.4R3-S5-EVO, 22.1-EVO - 22.1R3-S3-EVO, 22.2-EVO - 22.2R3-S2-EVO, 22.3R1-EVO - 22.3R3-S2-EVO, 22.4R1-EVO - 22.4R2-S2-EVO, 23.2R1-EVO - 23.2R1-S2-EVO
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.