#VU34845 Integer overflow in edk2 - CVE-2014-4860

Vulnerability identifier: #VU34845

Vulnerability 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-2014-4860

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
edk2
Hardware solutions / Firmware

Vendor: TianoCore

Description

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

Multiple integer overflows in the Pre-EFI Initialization (PEI) boot phase in the Capsule Update feature in the UEFI implementation in EDK2 allow physically proximate attackers to bypass intended access restrictions by providing crafted data that is not properly handled during the coalescing phase.

Mitigation
Install update from vendor's website.

Vulnerable software versions

edk2: All versions

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

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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.