#VU64139 Out-of-bounds write in U-Boot - CVE-2022-30790

Vulnerability identifier: #VU64139

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-30790

CWE-ID: CWE-787

Exploitation vector: Local network

Exploit availability: No

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

Vendor: DENX

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the implementation ofIP Packet Defragmentation. A remote attacker on the local netwotk can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

U-Boot: 2022.01

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External links
https://github.com/u-boot/u-boot/tags
https://research.nccgroup.com/2022/06/03/technical-advisory-multiple-vulnerabilities-in-u-boot-cve-2022-30790-cve-2022-30552/

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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