#VU65819 Out-of-bounds write in zephyr - CVE-2022-1042

Vulnerability identifier: #VU65819

Vulnerability risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-1042

CWE-ID: CWE-787

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
zephyr
Other software / Other software solutions

Vendor: rutantan

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 Bluetooth mesh core stack. A remote user on the local network can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

zephyr: 1.0.0 - 3.0.0

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External links
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-j7v7-w73r-mm5x

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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