#VU86182 Out-of-bounds write in Canon Japan products - CVE-2023-6234

Vulnerability identifier: #VU86182

Vulnerability 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-2023-6234

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LBP674
Hardware solutions / Office equipment, IP-phones, print servers
LBP672
Hardware solutions / Office equipment, IP-phones, print servers
LBP671C
Hardware solutions / Office equipment, IP-phones, print servers
MF755Cdw
Hardware solutions / Office equipment, IP-phones, print servers
MF753Cdw
Hardware solutions / Office equipment, IP-phones, print servers
MF751Cdw
Hardware solutions / Office equipment, IP-phones, print servers

Vendor: Canon Japan

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in CPCA Color LUT Resource Download process. A remote attacker can trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LBP674: 03.07

LBP672: 03.07

LBP671C: 03.07

MF755Cdw: 03.07

MF753Cdw: 03.07

MF751Cdw: 03.07

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External links
https://psirt.canon/advisory-information/cp2024-001/
https://canon.jp/support/support-info/240205vulnerability-response
https://jvn.jp/en/vu/JVNVU90033405/index.html
https://www.zerodayinitiative.com/advisories/ZDI-24-094/
https://www.zerodayinitiative.com/advisories/ZDI-24-562/

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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.