vulnerability
VMware Photon OS: CVE-2021-3418
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:N/C:P/I:P/A:P) | Mar 15, 2021 | Jan 20, 2025 | May 27, 2026 |
Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
Mar 15, 2021
Added
Jan 20, 2025
Modified
May 27, 2026
Description
If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.
Solution
vmware-photon_os_update_tdnf
Rapid7 Labs
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