CVSS2
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
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
Percentile
58.6%
The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments.
The fwupd packages provide a service that allows session software to update device firmware.
The following packages have been upgraded to a later upstream version: shim (15.4). (BZ#1932411)
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 | 8 | x86_64 | shim-x64 | < 15.4-2.el8_1 | shim-x64-15.4-2.el8_1.x86_64.rpm |
RedHat | 8 | aarch64 | fwupd | < 1.1.4-9.el8_2 | fwupd-1.1.4-9.el8_2.aarch64.rpm |
RedHat | 8 | s390x | fwupd-debugsource | < 1.1.4-9.el8_2 | fwupd-debugsource-1.1.4-9.el8_2.s390x.rpm |
RedHat | 8 | aarch64 | shim-aa64 | < 15.4-2.el8_1 | shim-aa64-15.4-2.el8_1.aarch64.rpm |
RedHat | 8 | s390x | fwupd | < 1.1.4-9.el8_2 | fwupd-1.1.4-9.el8_2.s390x.rpm |
RedHat | 8 | aarch64 | fwupd-debugsource | < 1.1.4-9.el8_2 | fwupd-debugsource-1.1.4-9.el8_2.aarch64.rpm |
RedHat | 8 | x86_64 | shim-ia32 | < 15.4-2.el8_1 | shim-ia32-15.4-2.el8_1.x86_64.rpm |
RedHat | 8 | x86_64 | fwupd-debuginfo | < 1.1.4-9.el8_2 | fwupd-debuginfo-1.1.4-9.el8_2.x86_64.rpm |
RedHat | 8 | x86_64 | shim-unsigned-x64 | < 15.4-4.el8_1 | shim-unsigned-x64-15.4-4.el8_1.x86_64.rpm |
RedHat | 8 | x86_64 | fwupd | < 1.1.4-9.el8_2 | fwupd-1.1.4-9.el8_2.x86_64.rpm |
CVSS2
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
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
Percentile
58.6%