Vulnerability Monitor

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CVE-2021-3981


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.


Published

2022-03-10T17:43:14.770

Last Modified

2024-11-21T06:23:18.047

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 3.3 (LOW)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

3.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-276
  • Type: Secondary
    CWE-276

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu grub2 ≤ 2.06 Yes
Operating System fedoraproject fedora 34 Yes

References