RHSA-2022:8900: Important: grub2 security update

First published: Thu Dec 08 2022(Updated: )

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.<br>Security Fix(es):<br><li> grub2: Integer underflow in grub_net_recv_ip4_packets (CVE-2022-28733)</li> 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.

Affected Software	Affected Version	How to fix
redhat/grub2	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-common	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-debuginfo	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-aa64-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-ia32	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-ia32-cdboot	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-ia32-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-x64	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-x64-cdboot	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-efi-x64-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-pc	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-pc-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-ppc-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-ppc64-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-ppc64le-modules	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools-extra	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools-minimal	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-debuginfo	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-ppc64	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools-extra	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools-minimal	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-debuginfo	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-ppc64le	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools-extra	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11
redhat/grub2-tools-minimal	<2.02-0.87.el7_9.11	2.02-0.87.el7_9.11

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Reference Links

https://access.redhat.com/errata/RHSA-2022:8900 (Advisory)

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