vulnerability

Huawei EulerOS: CVE-2025-0690: grub2 security update

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Feb 24, 2025
Added
May 13, 2025
Modified
May 14, 2025

Description

The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence.

Solution(s)

huawei-euleros-2_0_sp10-upgrade-grub2-commonhuawei-euleros-2_0_sp10-upgrade-grub2-efi-aa64huawei-euleros-2_0_sp10-upgrade-grub2-efi-aa64-moduleshuawei-euleros-2_0_sp10-upgrade-grub2-toolshuawei-euleros-2_0_sp10-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp10-upgrade-grub2-tools-minimal
Title
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