Rocky Linux: CVE-2022-28733: grub2,-mokutil,-shim,-and-shim-unsigned-x64 (Multiple Advisories)
Description
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.
Solution(s)
- rocky-upgrade-grub2-debuginfo
- rocky-upgrade-grub2-debugsource
- rocky-upgrade-grub2-efi-ia32
- rocky-upgrade-grub2-efi-ia32-cdboot
- rocky-upgrade-grub2-efi-x64
- rocky-upgrade-grub2-efi-x64-cdboot
- rocky-upgrade-grub2-pc
- rocky-upgrade-grub2-tools
- rocky-upgrade-grub2-tools-debuginfo
- rocky-upgrade-grub2-tools-efi
- rocky-upgrade-grub2-tools-efi-debuginfo
- rocky-upgrade-grub2-tools-extra
- rocky-upgrade-grub2-tools-extra-debuginfo
- rocky-upgrade-grub2-tools-minimal
- rocky-upgrade-grub2-tools-minimal-debuginfo
- rocky-upgrade-mokutil
- rocky-upgrade-mokutil-debuginfo
- rocky-upgrade-mokutil-debugsource
- rocky-upgrade-shim-ia32
- rocky-upgrade-shim-unsigned-x64
- rocky-upgrade-shim-x64
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