VULNERABILITY

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

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

Severity
7
CVSS
(AV:L/AC:L/Au:M/C:C/I:C/A:C)
Published
02/24/2025
Created
06/14/2025
Added
06/13/2025
Modified
06/16/2025

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_sp11-upgrade-grub2-common
  • huawei-euleros-2_0_sp11-upgrade-grub2-efi-aa64
  • huawei-euleros-2_0_sp11-upgrade-grub2-efi-aa64-modules
  • huawei-euleros-2_0_sp11-upgrade-grub2-tools
  • huawei-euleros-2_0_sp11-upgrade-grub2-tools-extra
  • huawei-euleros-2_0_sp11-upgrade-grub2-tools-minimal

References

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