What is CVE-2021-46922?

CVE-2021-46922 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.10.20 onward and patched in 5.10.33 and 5.11.17. CVE-2021-46922 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-46922?

CVE-2021-46922 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-46922?

Yes, CVE-2021-46922 has been patched. Fixed versions include 5.10.33 and 5.11.17. If you are running Linux kernel 5.10.20 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-46922 actively exploited?

CVE-2021-46922 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-46922

Medium

In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Fix TPM reservation for seal/unseal The original patch 8c657a0590de ("KEYS: trusted: Reserve TPM for seal and unseal operations") was correct on the mailing list: https://lore.kernel.org/linux-integrity/[email protected]/ But somehow got rebased so that the tpm_try_get_ops() in tpm2_seal_trusted() got lost. This causes an imbalanced put of the TPM ops and causes oopses on TIS based hardware. This fix puts back the lost tpm_try_get_ops()

Package Linux Kernel

Published 2024-02-27

Last modified 2024-11-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.10.20, 5.11.3 and later are affected. Fixed in 5.10.33, 5.11.17 and their respective stable series.

Affected from

≥ 5.10.20 ≥ 5.11.3

Fixed in

✓ 5.10.33 5.10.x ✓ 5.11.17 5.11.x

References

3 total

Kernel Git
https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999

Patch
Kernel Git
https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20

Patch
Kernel Git
https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4

Patch

Details

CVE ID CVE-2021-46922

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-27

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-46922?

CVE-2021-46922 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.10.20 onward and has been patched in 5.10.33 and 5.11.17. CVE-2021-46922 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-46922?

CVE-2021-46922 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-46922?

Yes. CVE-2021-46922 has been patched. Fixed versions include 5.10.33 and 5.11.17. If you are running Linux kernel 5.10.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-46922 actively exploited?

No. CVE-2021-46922 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.