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Insufficient input validation in the ABL may allow a...

Low severity Unreviewed Published Aug 13, 2024 to the GitHub Advisory Database • Updated Nov 6, 2024

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

Insufficient input validation in the ABL may allow a privileged
attacker with access to the BIOS menu or UEFI shell to tamper with the
structure headers in SPI ROM causing an out of bounds memory read and write,
potentially resulting in memory corruption or denial of service.

References

Published by the National Vulnerability Database Aug 13, 2024
Published to the GitHub Advisory Database Aug 13, 2024
Last updated Nov 6, 2024

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
High
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

EPSS score

0.045%
(17th percentile)

Weaknesses

CVE ID

CVE-2021-46772

GHSA ID

GHSA-mgjx-cq94-rwcv

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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