Integer Overflow Vulnerability in UEFI Implementation of EDK2
CVE-2014-4859

6.8MEDIUM

Key Information:

Vendor

Phoenix Technologies Ltd.

Status
Sct3
BiOS
Vendor
CVE Published:
31 January 2020

What is CVE-2014-4859?

An integer overflow vulnerability exists in the Drive Execution Environment (DXE) phase within the Capsule Update feature of the UEFI implementation found in EDK2. This vulnerability can be exploited by physically proximate attackers, enabling them to craft specific data to bypass intended access controls, potentially compromising the integrity and security of the system.

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Affected Version(s)

BIOS unknown

SCT3 before 5/23/2014

References

http://www.kb.cert.org/vuls/id/552286
x_refsource_MISC

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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