vulnerability
Rocky Linux: CVE-2021-20233: fwupd (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Mar 3, 2021 | Mar 12, 2024 | Aug 13, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Mar 3, 2021
Added
Mar 12, 2024
Modified
Aug 13, 2025
Description
A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Solutions
rocky-upgrade-fwupdrocky-upgrade-fwupd-debuginforocky-upgrade-fwupd-debugsource
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