CVE-2021-47194

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

10/04/2024

Last modified:

19/04/2024

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.6.0 (including)	4.4.293 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5.0 (including)	4.9.291 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10.0 (including)	4.14.256 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15.0 (including)	4.19.218 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20.0 (including)	5.4.162 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5.0 (including)	5.10.82 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11.0 (including)	5.15.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-47194

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools