CVE-2024-45775 Information

Description

A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub’s argument list. However it fails to check in case the memory allocation fails. Once the allocation fails a NULL point will be processed by the parse_option() function leading grub to crash or in some rare scenarios corrupt the IVT data.

CVSS Vector

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

Reference

https://access.redhat.com/security/cve/CVE-2024-45775 https://bugzilla.redhat.com/show_bug.cgi?id=2337481

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

HIGH

Base Severity

5.2