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nvd[email protected]NVD:CVE-2020-25632
HistoryMar 03, 2021 - 5:15 p.m.

CVE-2020-25632

2021-03-0317:15:11
CWE-416
[email protected]
web.nvd.nist.gov
8
flaw
grub2
arbitrary code
secure boot
data confidentiality
integrity
system availability

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

5.1%

JSON

A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected configurations

Nvd
Node
gnugrub2Range<2.06
Node
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0
OR
redhatenterprise_linux_server_ausMatch7.2
OR
redhatenterprise_linux_server_ausMatch7.3
OR
redhatenterprise_linux_server_ausMatch7.4
OR
redhatenterprise_linux_server_ausMatch7.6
OR
redhatenterprise_linux_server_ausMatch7.7
OR
redhatenterprise_linux_server_ausMatch8.2
OR
redhatenterprise_linux_server_eusMatch7.6
OR
redhatenterprise_linux_server_eusMatch7.7
OR
redhatenterprise_linux_server_eusMatch8.1
OR
redhatenterprise_linux_server_tusMatch7.4
OR
redhatenterprise_linux_server_tusMatch7.6
OR
redhatenterprise_linux_server_tusMatch7.7
OR
redhatenterprise_linux_server_tusMatch8.2
OR
redhatenterprise_linux_workstationMatch7.0
Node
fedoraprojectfedoraMatch33
OR
fedoraprojectfedoraMatch34
Node
netappontap_select_deploy_administration_utilityMatch-
VendorProductVersionCPE
gnugrub2*cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
redhatenterprise_linux7.0cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatenterprise_linux_server_aus7.2cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhatenterprise_linux_server_aus7.3cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhatenterprise_linux_server_aus7.4cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhatenterprise_linux_server_aus7.6cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
redhatenterprise_linux_server_aus7.7cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
redhatenterprise_linux_server_aus8.2cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
redhatenterprise_linux_server_eus7.6cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
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CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

5.1%

JSON
Related for NVD:CVE-2020-25632
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