CVE-2021-3981

EPSS 0.3%CWE-276

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

08 Mar 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

n/a · grub2

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References

https://bugzilla.redhat.com/show_bug.cgi?id=2024170 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AI776L35DDYPCSAAJPJM3ZEQYSFZHBJX/https://security.gentoo.org/glsa/202209-12 http://www.openwall.com/lists/oss-security/2024/01/15/3