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CVE-2020-25632

nvd nist
Published: Mar 3, 2021Modified: Nov 21, 2024

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8.2
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Exploitability: 1.5 / Impact: 6.0
Source: NVD

Description

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 (20)

Show all products
1 product
Grub2
5 products
Enterprise Linux
Enterprise Linux Server Aus
Enterprise Linux Server Eus
Enterprise Linux Server Tus
Enterprise Linux Workstation
1 product
Fedora
1 product
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Before 2.06
Configuration B
16 vulnerable
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Version 33
Version 34
Configuration D
1 vulnerable
Vulnerable SoftwareAffected Versions
All versions

References (8)

Source: secalert@redhat.com
Issue TrackingPatchThird Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.