Multiple vulnerabilities in TianoCore edk2

Published: 2020-01-31 | Updated: 2020-08-08

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2014-4859 CVE-2014-4860
CWE-ID	CWE-190
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	edk2 Hardware solutions / Firmware
Vendor	TianoCore

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU34844

Risk: Medium

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:Green]

CVE-ID: CVE-2014-4859

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows physically proximate attackers to bypass intended access restrictions via crafted data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

edk2: All versions

CPE2.3

cpe:2.3:h:tianocore:edk2:*:*:*:*:*:*:*:*

External links

https://www.kb.cert.org/vuls/id/552286

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.

2) Integer overflow

EUVDB-ID: #VU34845