What is CVE-2021-47194?

CVE-2021-47194 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 3.6 onward and patched in 4.4.293, 4.9.291, 4.14.256 and others. CVE-2021-47194 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47194?

CVE-2021-47194 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-2021-47194?

Yes, CVE-2021-47194 has been patched. Fixed versions include 4.4.293, 4.9.291, 4.14.256 and others. If you are running Linux kernel 3.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47194 actively exploited?

CVE-2021-47194 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47194

High

In the Linux kernel, the following vulnerability has been resolved: cfg80211: call cfg80211_stop_ap when switch from P2P_GO type If the userspace tools switch from NL80211_IFTYPE_P2P_GO to NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it does not call the cleanup cfg80211_stop_ap(), this leads to the initialization of in-use data. For example, this path re-init the sdata->assigned_chanctx_list while it is still an element of assigned_vifs list, and makes that linked list corrupt.

Package Linux Kernel

Published 2024-04-10

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-665

CVE-2021-47194 is classified as CWE-665

See CWE-665 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 3.6 and later are affected. Fixed in 4.4.293, 4.9.291, 4.14.256, 4.19.218, 5.4.162, 5.10.82, 5.15.5, 5.16 and their respective stable series.

Affected from

≥ 3.6

Fixed in

✓ 4.4.293 4.4.x ✓ 4.9.291 4.9.x ✓ 4.14.256 4.14.x ✓ 4.19.218 4.19.x ✓ 5.4.162 5.4.x ✓ 5.10.82 5.10.x ✓ 5.15.5 5.15.x ✓ 5.16

References

8 total

Kernel Git
https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc

Patch
Kernel Git
https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21

Patch
Kernel Git
https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13

Patch
Kernel Git
https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2

Patch
Kernel Git
https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2021-47194

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-04-10

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47194?

CVE-2021-47194 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 3.6 onward and has been patched in 4.4.293, 4.9.291, 4.14.256 and others. CVE-2021-47194 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47194?

CVE-2021-47194 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-2021-47194?

Yes. CVE-2021-47194 has been patched. Fixed versions include 4.4.293, 4.9.291, 4.14.256 and others. If you are running Linux kernel 3.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47194 actively exploited?

No. CVE-2021-47194 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.