#VU94190 Race condition in Junos OS Evolved and Juniper Junos OS - CVE-2024-39554

Vulnerability identifier: #VU94190

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-39554

CWE-ID: CWE-362

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Junos OS Evolved
Operating systems & Components / Operating system
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

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

The vulnerability exists due to a race condition in the Routing Protocol Daemon (rpd) when BGP multipath is enabled. A remote attacker can send specially crafted packets to the device and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 21.4R1-EVO - 21.4R3-S5-EVO, 22.1-EVO - 22.1R3-S4-EVO, 22.2-EVO - 22.2R3-S2-EVO, 22.3R1-EVO - 22.3R3-S1-EVO, 22.4R1-EVO - 22.4R2-S2-EVO, 23.2R1-EVO - 23.2R1-S2-EVO

Juniper Junos OS: 21.2R1-S1 - 21.2R3-S6, 21.4R1-S1 - 21.4R3-S5, 22.1R1-S1 - 22.1R3-S4, 22.2R1-S1 - 22.2R3-S2, 22.3R1-S1 - 22.3R3-S1, 22.4R1-S1 - 22.4R3-S2, 23.2R1-S1 - 23.2R2-S1, 23.4R1-S1 - 23.4R1-S2

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External links
https://supportportal.juniper.net/JSA83014

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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.