Out-of-bounds read in Asus Hardware solutions

#VU71217 Out-of-bounds read in Asus Hardware solutions

Published: 2023-01-17 | Updated: 2023-06-20

Vulnerability identifier: #VU71217

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38393

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vendor: Asus

Description

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

The vulnerability exists due to a boundary condition in the cfg_server cm_processConnDiagPktList opcode. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RT-AX82U: 3.0.0.4.386_49674-ge182230

External links
http://talosintelligence.com/vulnerability_reports/TALOS-2022-1592
http://www.hkcert.org/security-bulletin/asus-router-multiple-vulnerabilities_20230620
http://www.asus.com/content/asus-product-security-advisory/#06/19/2023

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.

Latest bulletins with this vulnerability

Multiple vulnerabilities in ASUS Routers