Out-of-bounds write in Dell Networking BIOS

1) Out-of-bounds write

EUVDB-ID: #VU76448

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-0200

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local privileged user to escalate privileges on the system.

The vulnerability exists due to a boundary error when processing untrusted input. A local privileged user can send a specially crafted file, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

X722 FW: before 5.0

CPE2.3

• cpe:2.3:a:dell:x722_fw:*:*:*:*:*:*:*:*

External links

https://www.dell.com/support/kbdoc/nl-nl/000209536/dsa-2023-078-dell-emc-networking-bios-security-update-for-multiple-vulnerabilities

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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