Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2021-3739

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

  • Published: Mar 10, 2022
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-3739
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.1
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 3.6
  • AV:L/AC:L/Au:N/C:P/I:N/A:P

CWEs:

Software From Fixed in
linux / linux_kernel - 5.14.20.x
fedoraproject / fedora 34 34.x