CVEvulnerability

CVE-2021-3752

7.1 HIGH Published 2022-02-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-02-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.1 HIGH — CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.9 HIGH — AV:A/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-362, CWE-416

Description

A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected configurations

• linux linux kernel (>= 2.6.12 < 4.4.293) • linux linux kernel (>= 4.5 < 4.9.291) • linux linux kernel (>= 4.10 < 4.14.256) • linux linux kernel (>= 4.15 < 4.19.218) • linux linux kernel (>= 4.20 < 5.4.160) • linux linux kernel (>= 5.5 < 5.10.80) • linux linux kernel (>= 5.11 < 5.14.19) • linux linux kernel (>= 5.15 < 5.15.3) • redhat 3scale 2.0 • redhat virtualization host 4.0 • fedoraproject fedora 34 • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • redhat enterprise linux for real time 7 • redhat enterprise linux for real time for nfv 7 • netapp h300s firmware • netapp h500s firmware • netapp h700s firmware • netapp h300e firmware • netapp h500e firmware • netapp h700e firmware • netapp h410s firmware • netapp h410c firmware • debian debian linux 9.0 • debian debian linux 10.0 • 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