vulnerability
Alma Linux: CVE-2022-28734: Important: grub2, mokutil, shim, and shim-unsigned-x64 security update (Multiple Advisories)
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
8 | (AV:N/AC:M/Au:N/C:P/I:P/A:C) | 06/16/2022 | 08/24/2022 | 01/30/2025 |
Severity
8
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:C)
Published
06/16/2022
Added
08/24/2022
Modified
01/30/2025
Description
Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.
Solution(s)
alma-upgrade-grub2-commonalma-upgrade-grub2-efi-aa64alma-upgrade-grub2-efi-aa64-cdbootalma-upgrade-grub2-efi-aa64-modulesalma-upgrade-grub2-efi-ia32alma-upgrade-grub2-efi-ia32-cdbootalma-upgrade-grub2-efi-ia32-modulesalma-upgrade-grub2-efi-x64alma-upgrade-grub2-efi-x64-cdbootalma-upgrade-grub2-efi-x64-modulesalma-upgrade-grub2-pcalma-upgrade-grub2-pc-modulesalma-upgrade-grub2-ppc64lealma-upgrade-grub2-ppc64le-modulesalma-upgrade-grub2-toolsalma-upgrade-grub2-tools-efialma-upgrade-grub2-tools-extraalma-upgrade-grub2-tools-minimalalma-upgrade-shim-aa64alma-upgrade-shim-ia32alma-upgrade-shim-unsigned-x64alma-upgrade-shim-x64

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