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redhatcveRedhat.comRH:CVE-2022-44032
HistoryJan 18, 2023 - 3:05 p.m.

CVE-2022-44032

2023-01-1815:05:35
redhat.com
access.redhat.com
11
race condition
cm4000_cs.c
uaf flaw
pcmcia device
linux kernel
blacklist
cardman mobile 4000

6.4 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

32.2%

A possible race condition was found in drivers/char/pcmcia/cm4000_cs.c between the cmm_open() and the cm4000_detach() functions if the user physically removes the PCMCIA device in the Linux kernel. This flaw may eventually result in a use-after-free (UAF) flaw.

Mitigation

This flaw can be mitigated by preventing the affected CardMan Mobile 4000 kernel module from loading during the boot time. Ensure the module is added into the blacklist file.

Refer:    
How do I blacklist a kernel module to prevent it from loading automatically?   
https://access.redhat.com/solutions/41278  

6.4 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

32.2%