#VU65331 Heap-based buffer overflow in U-Boot - CVE-2022-33967

Vulnerability identifier: #VU65331

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-33967

CWE-ID: CWE-122

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
U-Boot
Client/Desktop applications / Other client software

Vendor: DENX

Description

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

The vulnerability exists due to a defect in the metadata reading process. An attacker with physical access can use a specially crafted squashfs image, trigger a 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 updates from vendor's website.

Vulnerable software versions

U-Boot: 1.0.0 - 2022.07 rc6

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External links
https://jvn.jp/en/vu/JVNVU97846460/index.html

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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.