vulnerability
Rocky Linux: CVE-2021-3697: grub2,-mokutil,-shim,-and-shim-unsigned-x64 (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:S/C:C/I:C/A:C) | Jul 6, 2022 | Jul 11, 2022 | Jan 28, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Jul 6, 2022
Added
Jul 11, 2022
Modified
Jan 28, 2025
Description
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
Solution(s)
rocky-upgrade-grub2-debuginforocky-upgrade-grub2-debugsourcerocky-upgrade-grub2-efi-ia32rocky-upgrade-grub2-efi-ia32-cdbootrocky-upgrade-grub2-efi-x64rocky-upgrade-grub2-efi-x64-cdbootrocky-upgrade-grub2-pcrocky-upgrade-grub2-toolsrocky-upgrade-grub2-tools-debuginforocky-upgrade-grub2-tools-efirocky-upgrade-grub2-tools-efi-debuginforocky-upgrade-grub2-tools-extrarocky-upgrade-grub2-tools-extra-debuginforocky-upgrade-grub2-tools-minimalrocky-upgrade-grub2-tools-minimal-debuginforocky-upgrade-mokutilrocky-upgrade-mokutil-debuginforocky-upgrade-mokutil-debugsourcerocky-upgrade-shim-ia32rocky-upgrade-shim-unsigned-x64rocky-upgrade-shim-x64
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