What is CVE-2021-47096?

CVE-2021-47096 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.0 out of 10. CVE-2021-47096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47096?

CVE-2021-47096 has a CVSS score of 4.0 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Is there a patch available for CVE-2021-47096?

No patch is currently available for CVE-2021-47096. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47096 actively exploited?

CVE-2021-47096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47096

Medium

In the Linux kernel, the following vulnerability has been resolved: ALSA: rawmidi - fix the uninitalized user_pversion The user_pversion was uninitialized for the user space file structure in the open function, because the file private structure use kmalloc for the allocation. The kernel ALSA sequencer code clears the file structure, so no additional fixes are required. BugLink: https://github.com/alsa-project/alsa-lib/issues/178

Package Linux Kernel

Published 2024-03-04

Last modified 2025-04-08

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.0

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Vector string

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

Weakness type

CWE-908

CVE-2021-47096 is classified as CWE-908

See CWE-908 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-47096 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/39a8fc4971a00d22536aeb7d446ee4a97810611b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b398fcbe4de1e1100867fdb6f447c6fbc8fe7085
Patch

Details

CVE ID CVE-2021-47096

Severity Medium

CVSS score 4.0 / 10

CVSS version 3.1

Published 2024-03-04

Modified 2025-04-08

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47096?

CVE-2021-47096 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.0 out of 10 . CVE-2021-47096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47096?

CVE-2021-47096 has a CVSS score of 4.0 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Is there a patch available for CVE-2021-47096?

No patch is currently available for CVE-2021-47096. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47096 actively exploited?

No — CVE-2021-47096 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.