What is CVE-2021-47432?

CVE-2021-47432 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Integer Overflow flaw (CWE-190). CVE-2021-47432 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47432?

CVE-2021-47432 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-2021-47432?

No patch is currently available for CVE-2021-47432. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47432 actively exploited?

CVE-2021-47432 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2021-47432

Medium

In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Don't overflow in peek() When we started spreading new inode numbers throughout most of the 64 bit inode space, that triggered some corner case bugs, in particular some integer overflows related to the radix tree code. Oops.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-02

CVSS version 3.1

Patch available

Awaiting data

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-190

CVE-2021-47432 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-47432 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/784d01f9bbc282abb0c5ade5beb98a87f50343ac
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9492261ff2460252cf2d8de89cdf854c7e2b28a0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/aa7f1827953100cdde0795289a80c6c077bfe437
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2021-47432

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-02

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47432?

CVE-2021-47432 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . CVE-2021-47432 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47432?

CVE-2021-47432 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-2021-47432?

No patch is currently available for CVE-2021-47432. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47432 actively exploited?

No — CVE-2021-47432 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →