Vulnerability Monitor

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CVE-2021-4154

A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.

Published

2022-02-04T23:15:12.307

Last Modified

2024-11-21T06:37:00.750

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

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

3.9

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-416
  • Type: Primary
    CWE-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 5.4.134 Yes
Operating System linux linux_kernel < 5.10.52 Yes
Operating System linux linux_kernel < 5.12.19 Yes
Operating System linux linux_kernel < 5.13.4 Yes
Operating System linux linux_kernel 5.14 Yes
Application redhat virtualization 4.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Application netapp hci_baseboard_management_controller h300e Yes
Application netapp hci_baseboard_management_controller h300s Yes
Application netapp hci_baseboard_management_controller h410s Yes
Application netapp hci_baseboard_management_controller h500e Yes
Application netapp hci_baseboard_management_controller h500s Yes
Application netapp hci_baseboard_management_controller h700e Yes
Application netapp hci_baseboard_management_controller h700s Yes
References