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
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

21 Nov 2024, 06:31

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

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 -

09 Nov 2023, 14:44

Type Values Removed Values Added
CPE cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:*
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_h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700s_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_h300s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:*		 cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
First Time Netapp h700e Firmware
Netapp h500e Firmware
Netapp h410c
Netapp h410s
Netapp h700s
Netapp h300e Firmware
Netapp h700s Firmware
Netapp h300e
Netapp h700e
Netapp h410s Firmware
Netapp h500e
Netapp h300s Firmware
Netapp h500s Firmware
Netapp h300s
Netapp h500s
Netapp h410c Firmware

07 Nov 2023, 03:39

Type Values Removed Values Added
References
  • {'url': 'https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander@linaro.org/', 'name': 'https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander@linaro.org/', 'tags': ['Mailing List', 'Vendor Advisory'], 'refsource': 'MISC'}
  • () https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.org/ -

08 Aug 2023, 14:21

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

Published : 2021-12-22 17:15

Updated : 2024-11-21 06:31

NVD link : CVE-2021-44733

Mitre link : CVE-2021-44733

CVE.ORG link : CVE-2021-44733

JSON object : View

Products Affected

debian

  • debian_linux

netapp

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

fedoraproject

  • fedora

redhat

  • enterprise_linux

linux

  • linux_kernel
CWE
CWE-362

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