Vulnerability identifier: #VU75096

Vulnerability risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28975

CWE-ID: CWE-252

Exploitation vector: Local

Exploit availability: No

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

Vendor: Juniper Networks, Inc.

Description

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

The vulnerability exists due to unchecked return value in the kernel. An attacker with physical access to device can connect a malicious USB device to a USB port of the routing-engine (RE) and crash the OS kernel.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 22.4R1 - 22.4R1-S2, 20.2 - 20.2R3-S6, 21.2R1 - 21.2R3-S3, 21.3R1 - 21.3R3-S2, 22.3R1, 20.3 - 20.3R3-S5, 21.4R1 - 21.4R3-S1, 21.1 - 21.1R3-S3, 19.4 - 19.4R3-S9, 19.4R1 - 19.4R1-S4, 20.4 - 20.4R3-S4, 22.2R1 - 22.2R1-S2, 22.1R1 - 22.1R2-S1

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External links
http://supportportal.juniper.net/s/article/2023-04-Security-Bulletin-Junos-OS-The-kernel-will-crash-when-certain-USB-devices-are-inserted-CVE-2023-28975

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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