8.2 High
CVSS3
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
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.002 Low
EPSS
Percentile
57.8%
The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.
Security Fix(es):
grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled (CVE-2020-14372)
grub2: Use-after-free in rmmod command (CVE-2020-25632)
grub2: Out-of-bounds write in grub_usb_device_initialize() (CVE-2020-25647)
grub2: Stack buffer overflow in grub_parser_split_cmdline() (CVE-2020-27749)
grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled (CVE-2020-27779)
grub2: Heap out-of-bounds write in short form option parser (CVE-2021-20225)
grub2: Heap out-of-bounds write due to miscalculation of space required for quoting (CVE-2021-20233)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 7 | noarch | grub2-efi-x64-modules | < 2.02-0.86.el7_6.3 | grub2-efi-x64-modules-2.02-0.86.el7_6.3.noarch.rpm |
RedHat | 7 | x86_64 | grub2-efi-ia32 | < 2.02-0.86.el7_6.3 | grub2-efi-ia32-2.02-0.86.el7_6.3.x86_64.rpm |
RedHat | 7 | ppc64 | grub2 | < 2.02-0.86.el7_6.3 | grub2-2.02-0.86.el7_6.3.ppc64.rpm |
RedHat | 7 | x86_64 | grub2 | < 2.02-0.86.el7_6.3 | grub2-2.02-0.86.el7_6.3.x86_64.rpm |
RedHat | 7 | ppc64 | grub2-ppc64 | < 2.02-0.86.el7_6.3 | grub2-ppc64-2.02-0.86.el7_6.3.ppc64.rpm |
RedHat | 7 | noarch | grub2-ppc64le-modules | < 2.02-0.86.el7_6.3 | grub2-ppc64le-modules-2.02-0.86.el7_6.3.noarch.rpm |
RedHat | 7 | ppc64 | grub2-tools-extra | < 2.02-0.86.el7_6.3 | grub2-tools-extra-2.02-0.86.el7_6.3.ppc64.rpm |
RedHat | 7 | x86_64 | grub2-efi-x64 | < 2.02-0.86.el7_6.3 | grub2-efi-x64-2.02-0.86.el7_6.3.x86_64.rpm |
RedHat | 7 | ppc64le | grub2-tools-extra | < 2.02-0.86.el7_6.3 | grub2-tools-extra-2.02-0.86.el7_6.3.ppc64le.rpm |
RedHat | 7 | ppc64le | grub2-tools-minimal | < 2.02-0.86.el7_6.3 | grub2-tools-minimal-2.02-0.86.el7_6.3.ppc64le.rpm |
8.2 High
CVSS3
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
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.002 Low
EPSS
Percentile
57.8%