Local denial of service in Junos OS USB handling

1) Unchecked Return Value

EUVDB-ID: #VU75096

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 - Unchecked Return Value

Exploit availability: No

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: 19.4 - 22.4R1-S2

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

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.