Centos Linux: CVE-2022-28733: Important: grub2, mokutil, shim, and shim-unsigned-x64 security update (Multiple Advisories)
Description
A flaw was found in grub2 when handling IPv4 packets. This flaw allows an attacker to craft a malicious packet, triggering an integer underflow in grub code. Consequently, the memory allocation for handling the packet data may be smaller than the size needed. This issue causes an out-of-bands write during packet handling, compromising data integrity, confidentiality issues, a denial of service, and remote code execution.
Solution(s)
- centos-upgrade-grub2-common
- centos-upgrade-grub2-debuginfo
- centos-upgrade-grub2-debugsource
- centos-upgrade-grub2-efi-aa64-modules
- centos-upgrade-grub2-efi-ia32
- centos-upgrade-grub2-efi-ia32-cdboot
- centos-upgrade-grub2-efi-ia32-modules
- centos-upgrade-grub2-efi-x64
- centos-upgrade-grub2-efi-x64-cdboot
- centos-upgrade-grub2-efi-x64-modules
- centos-upgrade-grub2-emu-debuginfo
- centos-upgrade-grub2-pc
- centos-upgrade-grub2-pc-modules
- centos-upgrade-grub2-ppc64le-modules
- centos-upgrade-grub2-tools
- centos-upgrade-grub2-tools-debuginfo
- centos-upgrade-grub2-tools-efi
- centos-upgrade-grub2-tools-efi-debuginfo
- centos-upgrade-grub2-tools-extra
- centos-upgrade-grub2-tools-extra-debuginfo
- centos-upgrade-grub2-tools-minimal
- centos-upgrade-grub2-tools-minimal-debuginfo
- centos-upgrade-mokutil
- centos-upgrade-mokutil-debuginfo
- centos-upgrade-mokutil-debugsource
- centos-upgrade-shim-ia32
- centos-upgrade-shim-x64
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