CVE-2021-44733

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-44733
A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

7.0 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49d
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c Vendor Advisory
https://github.com/pjlantz/optee-qemu/blob/main/README.md Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List Third Party Advisory
https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.org/
https://security.netapp.com/advisory/ntap-20220114-0003/ Third Party Advisory
https://www.debian.org/security/2022/dsa-5096 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
History

25 Mar 2024, 01:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49d -

08 Aug 2023, 14:21

Type Values Removed Values Added
CWE CWE-416 CWE-362

01 Jun 2022, 18:54

Type Values Removed Values Added
CPE cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h500e:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h300s:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h410c:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h700e:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h300e:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h500s:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h700s:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h410s:*:*:*:*:*:*:*		 cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:*

01 Apr 2022, 16:44

Type Values Removed Values Added
References (DEBIAN) https://www.debian.org/security/2022/dsa-5096 - (DEBIAN) https://www.debian.org/security/2022/dsa-5096 - Third Party Advisory
References (MLIST) https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html - (MLIST) https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html - Mailing List, Third Party Advisory
References (CONFIRM) https://security.netapp.com/advisory/ntap-20220114-0003/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20220114-0003/ - Third Party Advisory
CPE cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h410c:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h700s:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h700e:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h500s:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h410s:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h300e:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h500e:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller:h300s:*:*:*:*:*:*:*

10 Mar 2022, 17:44

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2022/dsa-5096 -
  • (MLIST) https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html -

14 Jan 2022, 07:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20220114-0003/ -

03 Jan 2022, 23:25

Type Values Removed Values Added
References (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c - (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c - Vendor Advisory
References (MISC) https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander@linaro.org/ - (MISC) https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander@linaro.org/ - Mailing List, Vendor Advisory
References (MISC) https://github.com/pjlantz/optee-qemu/blob/main/README.md - (MISC) https://github.com/pjlantz/optee-qemu/blob/main/README.md - Exploit, Third Party Advisory
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 4.4
v3 : 7.0
CWE CWE-416

27 Dec 2021, 15:15

Type Values Removed Values Added
References
  • (MISC) https://github.com/pjlantz/optee-qemu/blob/main/README.md -

22 Dec 2021, 18:28

Type Values Removed Values Added
New CVE
Information

Published : 2021-12-22 17:15

Updated : 2024-03-25 01:15

NVD link : CVE-2021-44733

Mitre link : CVE-2021-44733

CVE.ORG link : CVE-2021-44733

JSON object : View

Products Affected

netapp

  • h500s
  • h300s
  • h410c_firmware
  • h300s_firmware
  • h700e_firmware
  • h700e
  • h700s_firmware
  • h300e
  • h410s_firmware
  • h500e_firmware
  • h500e
  • h700s
  • h410s
  • h410c
  • h300e_firmware
  • h500s_firmware

redhat

  • enterprise_linux

debian

  • debian_linux

linux

  • linux_kernel

fedoraproject

  • fedora
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')