Lucene search

K
nvd416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2021-47194
HistoryApr 10, 2024 - 7:15 p.m.

CVE-2021-47194

2024-04-1019:15:47
CWE-665
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
1
linux kernel
cfg80211_stop_ap
vulnerability
p2p_go
adhoc
switch

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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.

Affected configurations

NVD
Node
linuxlinux_kernelRange3.6.04.4.293
OR
linuxlinux_kernelRange4.5.04.9.291
OR
linuxlinux_kernelRange4.10.04.14.256
OR
linuxlinux_kernelRange4.15.04.19.218
OR
linuxlinux_kernelRange4.20.05.4.162
OR
linuxlinux_kernelRange5.5.05.10.82
OR
linuxlinux_kernelRange5.11.05.15.5

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%