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redhatcveRedhat.comRH:CVE-2020-26088
HistorySep 24, 2020 - 7:03 p.m.

CVE-2020-26088

2020-09-2419:03:34
redhat.com
access.redhat.com
13

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:N/I:P/A:N

0.0004 Low

EPSS

Percentile

5.3%

A missing capabilities check when creating NFC raw sockets could be used by local attackers to create raw sockets, bypassing security mechanisms allowing them to create or listen to NFC communication frames.

Mitigation

As the nfc module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions:

echo "install nfc /bin/true" >> /etc/modprobe.d/disable-nfc.conf

The system will need to be restarted if the NFC module is loaded. In most circumstances, the CIFS kernel modules will be unable to be unloaded while any interfaces are active and the protocol is in use.

If the system requires this module to work correctly, this mitigation may not be suitable.

If you need further assistance, see KCS article <https://access.redhat.com/solutions/41278&gt; or contact Red Hat Global Support Services.

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:N/I:P/A:N

0.0004 Low

EPSS

Percentile

5.3%

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