RedHatRHSA-2022:8900(RHSA-2022:8900) Important: grub2 security update
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.3%
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: Integer underflow in grub_net_recv_ip4_packets (CVE-2022-28733)
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-ppc-modules | < 2.02-0.87.el7_9.11 | grub2-ppc-modules-2.02-0.87.el7_9.11.noarch.rpm |
| RedHat | 7 | ppc64le | grub2-tools-minimal | < 2.02-0.87.el7_9.11 | grub2-tools-minimal-2.02-0.87.el7_9.11.ppc64le.rpm |
| RedHat | 7 | noarch | grub2-efi-ia32-modules | < 2.02-0.87.el7_9.11 | grub2-efi-ia32-modules-2.02-0.87.el7_9.11.noarch.rpm |
| RedHat | 7 | noarch | grub2-ppc64-modules | < 2.02-0.87.el7_9.11 | grub2-ppc64-modules-2.02-0.87.el7_9.11.noarch.rpm |
| RedHat | 7 | noarch | grub2-ppc64le-modules | < 2.02-0.87.el7_9.11 | grub2-ppc64le-modules-2.02-0.87.el7_9.11.noarch.rpm |
| RedHat | 7 | x86_64 | grub2-efi-ia32-cdboot | < 2.02-0.87.el7_9.11 | grub2-efi-ia32-cdboot-2.02-0.87.el7_9.11.x86_64.rpm |
| RedHat | 7 | ppc64 | grub2-ppc64 | < 2.02-0.87.el7_9.11 | grub2-ppc64-2.02-0.87.el7_9.11.ppc64.rpm |
| RedHat | 7 | x86_64 | grub2-pc | < 2.02-0.87.el7_9.11 | grub2-pc-2.02-0.87.el7_9.11.x86_64.rpm |
| RedHat | 7 | x86_64 | grub2-efi-ia32 | < 2.02-0.87.el7_9.11 | grub2-efi-ia32-2.02-0.87.el7_9.11.x86_64.rpm |
| RedHat | 7 | x86_64 | grub2 | < 2.02-0.87.el7_9.11 | grub2-2.02-0.87.el7_9.11.x86_64.rpm |
Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.3%