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redhatcveRedhat.comRH:CVE-2022-3628
HistoryDec 05, 2022 - 6:13 p.m.

CVE-2022-3628

2022-12-0518:13:22
redhat.com
access.redhat.com
27
linux kernel
broadcom
buffer overflow
wi-fi driver
usb device
local user
system crash
privilege escalation
mitigation
brcmfmac module
blacklist.

6.6 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

A buffer overflow flaw was found in the Linux kernel Broadcom Full MAC Wi-Fi driver. This issue occurs when a user connects to a malicious USB device. This can allow a local user to crash the system or escalate their privileges.

Mitigation

To mitigate this issue, prevent the brcmfmac module from being loaded. See <https://access.redhat.com/solutions/41278&gt; for how to blacklist a kernel module to prevent it from loading automatically.

6.6 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%