CVE-2019-14562: Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 01-01-2022 Published: 23-11-2020

CVE-2019-14562
Vulnerability Scoring

5.5
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: LOCAL
  • Privileges Required: Low Impact
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality:
  • Integrity:
  • Availability: HIGH IMPACT

CVE-2019-14562 Vulnerability Summary

Integer overflow in DxeImageVerificationHandler() EDK II may allow an authenticated user to potentially enable denial of service via local access.

Access Complexity Graph for CVE-2019-14562

Impact Analysis for CVE-2019-14562

CVE-2019-14562: Detailed Information and External References

EPSS

0.00044

EPSS %

0.15085

References

0.00044

CWE

CWE-190

CAPEC

0.00044

  • Forced Integer Overflow: This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

Vulnerable Configurations

  • cpe:2.3:a:tianocore:edk2:-:*:*:*:*:*:*:*
    cpe:2.3:a:tianocore:edk2:-:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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