Low severity3.3NVD Advisory· Published Mar 10, 2022· Updated Jun 17, 2026
CVE-2021-3981
CVE-2021-3981
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
21- grub2/grub2description
- osv-coords19 versionspkg:rpm/almalinux/grub2-commonpkg:rpm/almalinux/grub2-efi-aa64pkg:rpm/almalinux/grub2-efi-aa64-cdbootpkg:rpm/almalinux/grub2-efi-aa64-modulespkg:rpm/almalinux/grub2-efi-ia32pkg:rpm/almalinux/grub2-efi-ia32-cdbootpkg:rpm/almalinux/grub2-efi-ia32-modulespkg:rpm/almalinux/grub2-efi-x64pkg:rpm/almalinux/grub2-efi-x64-cdbootpkg:rpm/almalinux/grub2-efi-x64-modulespkg:rpm/almalinux/grub2-pcpkg:rpm/almalinux/grub2-pc-modulespkg:rpm/almalinux/grub2-ppc64lepkg:rpm/almalinux/grub2-ppc64le-modulespkg:rpm/almalinux/grub2-toolspkg:rpm/almalinux/grub2-tools-efipkg:rpm/almalinux/grub2-tools-extrapkg:rpm/almalinux/grub2-tools-minimalpkg:rpm/opensuse/grub2&distro=openSUSE%20Tumbleweed
< 1:2.02-123.el8.alma+ 18 more
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- (no CPE)range: < 1:2.02-123.el8_6.8.alma
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- (no CPE)range: < 1:2.02-123.el8.alma
- (no CPE)range: < 2.06-13.1
Patches
Vulnerability mechanics
References
4- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- security.gentoo.org/glsa/202209-12nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2024/01/15/3nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AI776L35DDYPCSAAJPJM3ZEQYSFZHBJX/nvd
News mentions
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