A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2021-03-03T16:40:42

Updated: 2024-08-04T15:40:36.224Z

Reserved: 2020-09-16T00:00:00

Link: CVE-2020-25647

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-03T17:15:11.707

Modified: 2023-11-07T03:20:18.820

Link: CVE-2020-25647

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-02T18:00:00Z

Links: CVE-2020-25647 - Bugzilla