CVE-2021-3981
Low
Description
A flaw in grub2 was found where its configuration file, known as grub.cfg, is being created with the wrong permission set allowing non privileged users to read its content. This represents a low severity confidentiality issue, as those users can eventually read any encrypted passwords present in grub.cfg. This flaw affects grub2 2.06 and previous versions. This issue has been fixed in grub upstream but no version with the fix is currently released.
SeverityLow
CVSS3.3
Exploit probability—
Product
Gnu Grub2
PublishedMar 10, 2022
First seenMar 10, 2022
Weakness typeCWE-276CWE-276
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu grub2 | v ≤ 2.06 | — |
| fedoraproject fedora | 34 | — |
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