What is CVE-2021-47373?

CVE-2021-47373 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.14 onward and patched in 4.14.249, 4.19.209, 5.4.150 and others. CVE-2021-47373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47373?

CVE-2021-47373 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-2021-47373?

Yes, CVE-2021-47373 has been patched. Fixed versions include 4.14.249, 4.19.209, 5.4.150 and others. If you are running Linux kernel 4.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47373 actively exploited?

CVE-2021-47373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47373

Medium

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In its_vpe_irq_domain_alloc, when its_vpe_init() returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which is the index of the loop iterating over the VPEs. [maz: fixed commit message]

Package Linux Kernel

Published 2024-05-21

Last modified 2024-12-26

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

Weakness type

CWE-193

CVE-2021-47373 is classified as CWE-193

See CWE-193 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.14 and later are affected. Fixed in 4.14.249, 4.19.209, 5.4.150, 5.10.70, 5.14.9, 5.15 and their respective stable series.

Affected from

≥ 4.14

Fixed in

✓ 4.14.249 4.14.x ✓ 4.19.209 4.19.x ✓ 5.4.150 5.4.x ✓ 5.10.70 5.10.x ✓ 5.14.9 5.14.x ✓ 5.15

References

6 total

Kernel Git
https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd

Patch
Kernel Git
https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b

Patch
Kernel Git
https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7

Patch
Kernel Git
https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0

Patch
Kernel Git
https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2021-47373

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2024-12-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47373?

CVE-2021-47373 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.14 onward and has been patched in 4.14.249, 4.19.209, 5.4.150 and others. CVE-2021-47373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47373?

CVE-2021-47373 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-2021-47373?

Yes. CVE-2021-47373 has been patched. Fixed versions include 4.14.249, 4.19.209, 5.4.150 and others. If you are running Linux kernel 4.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47373 actively exploited?

No. CVE-2021-47373 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.