Heap-based buffer overflow in Mitsubishi Electric Module Q12DCCPU-V



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-29998
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Module Q12DCCPU-V
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Mitsubishi Electric

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU62291

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-29998

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in dhcp client. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Module Q12DCCPU-V: 24031

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-22-102-02
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-001_en.pdf


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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