What is CVE-2021-47016?

CVE-2021-47016 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.2 onward and patched in 5.4.119, 5.10.37, 5.11.21 and others. CVE-2021-47016 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47016?

CVE-2021-47016 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-2021-47016?

Yes, CVE-2021-47016 has been patched. Fixed versions include 5.4.119, 5.10.37, 5.11.21 and others. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47016 actively exploited?

CVE-2021-47016 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47016

Medium

In the Linux kernel, the following vulnerability has been resolved: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits Don't clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As Michael reported, "This results in no timer interrupts being delivered after the first. Initialization then hangs in calibrate_delay as the jiffies counter is not updated." On mvme16x, enable the timer after requesting the irq, consistent with mvme147.

Package Linux Kernel

Published 2024-02-29

Last modified 2025-01-09

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 5.2 and later are affected. Fixed in 5.4.119, 5.10.37, 5.11.21, 5.12.4, 5.13 and their respective stable series.

Affected from

≥ 5.2

Fixed in

✓ 5.4.119 5.4.x ✓ 5.10.37 5.10.x ✓ 5.11.21 5.11.x ✓ 5.12.4 5.12.x ✓ 5.13

References

5 total

Kernel Git
https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae

Patch
Kernel Git
https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967

Patch
Kernel Git
https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21

Patch
Kernel Git
https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576

Patch
Kernel Git
https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878

Patch

Details

CVE ID CVE-2021-47016

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-29

Modified 2025-01-09

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47016?

CVE-2021-47016 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.2 onward and has been patched in 5.4.119, 5.10.37, 5.11.21 and others. CVE-2021-47016 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47016?

CVE-2021-47016 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-2021-47016?

Yes. CVE-2021-47016 has been patched. Fixed versions include 5.4.119, 5.10.37, 5.11.21 and others. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47016 actively exploited?

No. CVE-2021-47016 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.