Vulnerability identifier: #VU95180

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36765

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
edk2
Hardware solutions / Firmware

Vendor: TianoCore

Description

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

The vulnerability exists due to integer overflow within the CreateHob() function. A local user can trigger an integer overflow and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

edk2: edk2-stable201808 - UDK2018

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External links
http://github.com/tianocore/edk2/security/advisories/GHSA-ch4w-v7m3-g8wx
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/

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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.