6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
15.5%
GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu’s peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | grub2 | < 2.06-13+deb12u1 | grub2_2.06-13+deb12u1_all.deb |
Debian | 11 | all | grub2 | < 2.06-3~deb11u6 | grub2_2.06-3~deb11u6_all.deb |
Debian | 999 | all | grub2 | < 2.12-2 | grub2_2.12-2_all.deb |
Debian | 13 | all | grub2 | < 2.12-2 | grub2_2.12-2_all.deb |
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
15.5%