CVEvulnerability

CVE-2021-4083

7.0 HIGH Published 2022-01-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-01-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-362, CWE-416

Description

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.

Affected configurations

• linux linux kernel (< 4.4.294) • linux linux kernel (>= 4.5 < 4.9.292) • linux linux kernel (>= 4.10 < 4.14.257) • linux linux kernel (>= 4.15 < 4.19.220) • linux linux kernel (>= 4.20 < 5.4.164) • linux linux kernel (>= 5.5.0 < 5.10.84) • linux linux kernel (>= 5.11 < 5.15.7) • linux linux kernel 5.16 • netapp h410c firmware • netapp h300s firmware • netapp h500s firmware • netapp h700s firmware • netapp h300e firmware • netapp h500e firmware • netapp h700e firmware • netapp h410s firmware • debian debian linux 9.0 • debian debian linux 10.0 • netapp hci management node • netapp solidfire • oracle communications cloud native core binding support function 22.1.3 • oracle communications cloud native core network exposure function 22.1.1 • oracle communications cloud native core policy 22.2.0

Related

Weakness · CWE (2)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
  • CWE-416 Use After Free weakness

References