Vulnerability Monitor

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CVE-2021-28964

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

Published

2021-03-22T09:15:13.517

Last Modified

2024-11-21T06:00:27.570

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

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

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

3.4

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-362
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel ≤ 5.11.8 Yes
Operating System fedoraproject fedora 32 Yes
Operating System fedoraproject fedora 33 Yes
Operating System fedoraproject fedora 34 Yes
Operating System debian debian_linux 9.0 Yes
Application netapp cloud_backup - Yes
Operating System netapp solidfire_baseboard_management_controller_firmware - Yes
Operating System netapp aff_a250_firmware - Yes
Hardware netapp aff_a250 - No
Operating System netapp fas_500f_firmware - Yes
Hardware netapp fas_500f - No
References