What is CVE-2021-46943?

CVE-2021-46943 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 5.2 onward and patched in 5.4.118, 5.10.36, 5.11.20 and others. CVE-2021-46943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-46943?

CVE-2021-46943 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2021-46943?

Yes, CVE-2021-46943 has been patched. Fixed versions include 5.4.118, 5.10.36, 5.11.20 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-2021-46943 actively exploited?

CVE-2021-46943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-46943

High

In the Linux kernel, the following vulnerability has been resolved: media: staging/intel-ipu3: Fix set_fmt error handling If there in an error during a set_fmt, do not overwrite the previous sizes with the invalid config. Without this patch, v4l2-compliance ends up allocating 4GiB of RAM and causing the following OOPs [ 38.662975] ipu3-imgu 0000:00:05.0: swiotlb buffer is full (sz: 4096 bytes) [ 38.662980] DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:00:05.0 [ 38.663010] general protection fault: 0000 [#1] PREEMPT SMP

Package Linux Kernel

Published 2024-02-27

Last modified 2024-11-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-131

CVE-2021-46943 is classified as CWE-131

See CWE-131 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.2 and later are affected. Fixed in 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13 and their respective stable series.

Affected from

≥ 5.2

Fixed in

✓ 5.4.118 5.4.x ✓ 5.10.36 5.10.x ✓ 5.11.20 5.11.x ✓ 5.12.3 5.12.x ✓ 5.13

References

5 total

Kernel Git
https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916

Patch
Kernel Git
https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc

Patch
Kernel Git
https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6

Patch
Kernel Git
https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356

Patch
Kernel Git
https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137

Patch

Details

CVE ID CVE-2021-46943

Severity High

CVSS score 7.8 / 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-2021-46943?

CVE-2021-46943 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 5.2 onward and has been patched in 5.4.118, 5.10.36, 5.11.20 and others. CVE-2021-46943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-46943?

CVE-2021-46943 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2021-46943?

Yes. CVE-2021-46943 has been patched. Fixed versions include 5.4.118, 5.10.36, 5.11.20 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-2021-46943 actively exploited?

No. CVE-2021-46943 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.