Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU66594
Risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-34835
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows an attacker to escalate privileges on the system.
The vulnerability exists due to a boundary error in the do_i2c_md() function within the "i2c md" command. An attacker with physical access to device can trigger a stack-based buffer overflow and escalate privileges on the system.
Install updates from vendor's website.
Vulnerable software versionsU-Boot: 1.0.0 - 2022.07 rc5
CPE2.3https://source.denx.de/u-boot/u-boot/-/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
https://lists.denx.de/pipermail/u-boot/2022-June/486113.html
https://github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
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.