Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-3640


A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.


Published

2022-03-03T23:15:08.197

Last Modified

2024-11-21T06:22:03.073

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: Primary
    CWE-362
  • Type: Secondary
    CWE-416

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.4.293 Yes
Operating System linux linux_kernel < 4.9.291 Yes
Operating System linux linux_kernel < 4.14.256 Yes
Operating System linux linux_kernel < 4.19.218 Yes
Operating System linux linux_kernel < 5.4.160 Yes
Operating System linux linux_kernel < 5.10.80 Yes
Operating System linux linux_kernel < 5.14.19 Yes
Operating System linux linux_kernel < 5.15.3 Yes
Operating System debian debian_linux 9.0 Yes
Operating System fedoraproject fedora 34 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 20.04 Yes
Operating System canonical ubuntu_linux 21.10 Yes
Operating System netapp h300s_firmware - Yes
Hardware netapp h300s - 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 netapp h410c_firmware - Yes
Hardware netapp h410c - No
Operating System netapp h500s_firmware - Yes
Hardware netapp h500s - No

References