What is CVE-2021-47624?

CVE-2021-47624 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 5.14 onward and patched in 5.15.24, 5.16.10 and 5.17. CVE-2021-47624 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47624?

CVE-2021-47624 has a CVSS score of 7.1 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:N/A:H.

Is there a patch available for CVE-2021-47624?

Yes, CVE-2021-47624 has been patched. Fixed versions include 5.15.24, 5.16.10 and 5.17. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47624 actively exploited?

CVE-2021-47624 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47624

High

In the Linux kernel, the following vulnerability has been resolved: net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change The refcount leak issues take place in an error handling path. When the 3rd argument buf doesn't match with "offline", "online" or "remove", the function simply returns -EINVAL and forgets to decrease the reference count of a rpc_xprt object and a rpc_xprt_switch object increased by rpc_sysfs_xprt_kobj_get_xprt() and rpc_sysfs_xprt_kobj_get_xprt_switch(), causing reference count leaks of both unused objects. Fix this issue by jumping to the error handling path labelled with out_put when buf matches none of "offline", "online" or "remove".

Package Linux Kernel

Published 2024-07-16

Last modified 2024-11-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.14 and later are affected. Fixed in 5.15.24, 5.16.10, 5.17 and their respective stable series.

Affected from

≥ 5.14

Fixed in

✓ 5.15.24 5.15.x ✓ 5.16.10 5.16.x ✓ 5.17

References

3 total

Kernel Git
https://git.kernel.org/stable/c/4b22aa42bd4d2d630ef1854c139275c3532937cb

Mailing List Patch
Kernel Git
https://git.kernel.org/stable/c/5f6024c05a2c0fdd180b29395aaf686d25af3a0f

Mailing List Patch
Kernel Git
https://git.kernel.org/stable/c/776d794f28c95051bc70405a7b1fa40115658a18

Mailing List Patch

Details

CVE ID CVE-2021-47624

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2024-07-16

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47624?

CVE-2021-47624 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 5.14 onward and has been patched in 5.15.24, 5.16.10 and 5.17. CVE-2021-47624 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47624?

CVE-2021-47624 has a CVSS score of 7.1 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:N/A:H.
Is there a patch available for CVE-2021-47624?

Yes. CVE-2021-47624 has been patched. Fixed versions include 5.15.24, 5.16.10 and 5.17. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47624 actively exploited?

No. CVE-2021-47624 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.