Vulnerability Monitor

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CVE-2021-4083

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

Published

2022-01-18T17:15:09.403

Last Modified

2024-11-21T06:36:52.243

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

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

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

3.4

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-416
  • Type: Primary
    CWE-362
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.4.294 Yes
Operating System linux linux_kernel < 4.9.292 Yes
Operating System linux linux_kernel < 4.14.257 Yes
Operating System linux linux_kernel < 4.19.220 Yes
Operating System linux linux_kernel < 5.4.164 Yes
Operating System linux linux_kernel < 5.10.84 Yes
Operating System linux linux_kernel < 5.15.7 Yes
Operating System linux linux_kernel 5.16 Yes
Operating System linux linux_kernel 5.16 Yes
Operating System linux linux_kernel 5.16 Yes
Operating System netapp h410c_firmware - Yes
Hardware netapp h410c - No
Operating System netapp h300s_firmware - Yes
Hardware netapp h300s - No
Operating System netapp h500s_firmware - Yes
Hardware netapp h500s - No
Operating System netapp h700s_firmware - Yes
Hardware netapp h700s - No
Operating System netapp h300e_firmware - Yes
Hardware netapp h300e - No
Operating System netapp h500e_firmware - Yes
Hardware netapp h500e - No
Operating System netapp h700e_firmware - Yes
Hardware netapp h700e - No
Operating System netapp h410s_firmware - Yes
Hardware netapp h410s - No
Operating System debian debian_linux 9.0 Yes
Operating System debian debian_linux 10.0 Yes
Application netapp hci_management_node - Yes
Application netapp solidfire - Yes
Application oracle communications_cloud_native_core_binding_support_function 22.1.3 Yes
Application oracle communications_cloud_native_core_network_exposure_function 22.1.1 Yes
Application oracle communications_cloud_native_core_policy 22.2.0 Yes
References