Remote denial of service in Junos OS PFE on SRX series

1) Deadlock

EUVDB-ID: #VU98389

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2024-47506

CWE-ID: CWE-833 - Deadlock

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to deadlock in the packet forwarding engine. When a large amount of traffic is processed by ATP Cloud inspection, a deadlock can occur which will result in a PFE crash and restart.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 21.3R1-S1 - 22.3R1-S2

CPE2.3

• cpe:2.3:o:juniper_networks:juniper_junos_os:21.3R1-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.3R1-S2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.3R2-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.3R2-S2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.3R1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.3R2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.4R1-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.4R1-S2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.4R2-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:21.4R2-S2:*:*:*:*:*:*:*

External links

https://supportportal.juniper.net/s/article/2024-10-Security-Bulletin-Junos-OS-SRX-Series-A-large-amount-of-traffic-being-processed-by-ATP-Cloud-can-lead-to-a-PFE-crash-CVE-2024-47506

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.