CVE-2020-25647
HIGHGRUB2 < 2.06 - Out-of-bounds Write via USB Device Initialization
Title source: llmDescription
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References (4)
Core 4
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1886936
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202104-05
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220325-0001/
Scores
CVSS v3
7.6
EPSS
0.0001
EPSS Percentile
0.9%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (20)
fedoraproject/fedora
33
fedoraproject/fedora
34
gnu/grub2
< 2.06
netapp/ontap_select_deploy_administration_utility
redhat/enterprise_linux
7.0
redhat/enterprise_linux
8.0
redhat/enterprise_linux_server_aus
7.2
redhat/enterprise_linux_server_aus
7.3
redhat/enterprise_linux_server_aus
7.4
redhat/enterprise_linux_server_aus
7.6
... and 10 more
Published
Mar 03, 2021
Tracked Since
Feb 18, 2026