#VU64159 Buffer overflow in UNISOC modem firmware - CVE-2022-20210

Vulnerability identifier: #VU64159

Vulnerability risk: High

CVSSv4.0: 7.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2022-20210

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
UNISOC modem firmware
Mobile applications / Mobile firmware & hardware

Vendor: UNISOC

Description

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

The vulnerability exists due to a boundary error in the modem firmware component. A remote attacker can send a specially-crafted packet to execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

UNISOC modem firmware: All versions

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External links
https://research.checkpoint.com/2022/vulnerability-within-the-unisoc-baseband/

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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. However, proof of concept for this vulnerability is available.