CVE-2021-44733
Linux TEE Subsystem Use-After-Free Vulnerability
Description
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.
INFO
Published Date :
Dec. 22, 2021, 5:15 p.m.
Last Modified :
March 25, 2024, 1:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
Public PoC/Exploit Available at Github
CVE-2021-44733 has a 8 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2021-44733
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-44733
.
URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
All CVE - PoC in GitHub
poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate
None
None
None
None
Environment with vulnerable kernel for exploitation of the TEE driver (CVE-2021-44733)
My Personal Reading lists for CVE Writeups
Python
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-44733
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-44733
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 25, 2024
Action Type Old Value New Value Added Reference MITRE https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49d [No types assigned] -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.org/ [No types assigned] Removed Reference MITRE https://lore.kernel.org/lkml/[email protected]/ -
CWE Remap by [email protected]
Aug. 08, 2023
Action Type Old Value New Value Changed CWE CWE-416 CWE-362 -
Reanalysis by [email protected]
Jun. 01, 2022
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h300s:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h500s:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h700s:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h300e:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h500e:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h700e:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h410s:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h410c:*:*:*:*:*:*:* AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Apr. 01, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20220114-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20220114-0003/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5096 No Types Assigned https://www.debian.org/security/2022/dsa-5096 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* 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:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h300s:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h500s:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h700s:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h300e:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h500e:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h700e:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h410s:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller:h410c:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 10, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5096 [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html [No Types Assigned] -
CVE Modified by [email protected]
Jan. 14, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220114-0003/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 03, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c Vendor Advisory Changed Reference Type https://github.com/pjlantz/optee-qemu/blob/main/README.md No Types Assigned https://github.com/pjlantz/optee-qemu/blob/main/README.md Exploit, Third Party Advisory Changed Reference Type https://lore.kernel.org/lkml/[email protected]/ No Types Assigned https://lore.kernel.org/lkml/[email protected]/ Mailing List, Vendor Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.15.11 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 27, 2021
Action Type Old Value New Value Added Reference https://github.com/pjlantz/optee-qemu/blob/main/README.md [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-44733
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-44733
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.03%
score
0.45529
percentile