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Amazon Linux AMI 2: CVE-2022-28734: Security patch for grub2 (ALAS-2023-2146)

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Amazon Linux AMI 2: CVE-2022-28734: Security patch for grub2 (ALAS-2023-2146)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/20/2023
Created
07/21/2023
Added
07/21/2023
Modified
01/18/2024

Description

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.

Solution(s)

  • amazon-linux-ami-2-upgrade-grub2
  • amazon-linux-ami-2-upgrade-grub2-common
  • amazon-linux-ami-2-upgrade-grub2-debuginfo
  • amazon-linux-ami-2-upgrade-grub2-efi-aa64
  • amazon-linux-ami-2-upgrade-grub2-efi-aa64-cdboot
  • amazon-linux-ami-2-upgrade-grub2-efi-aa64-ec2
  • amazon-linux-ami-2-upgrade-grub2-efi-aa64-modules
  • amazon-linux-ami-2-upgrade-grub2-efi-x64
  • amazon-linux-ami-2-upgrade-grub2-efi-x64-cdboot
  • amazon-linux-ami-2-upgrade-grub2-efi-x64-ec2
  • amazon-linux-ami-2-upgrade-grub2-efi-x64-modules
  • amazon-linux-ami-2-upgrade-grub2-emu
  • amazon-linux-ami-2-upgrade-grub2-emu-modules
  • amazon-linux-ami-2-upgrade-grub2-pc
  • amazon-linux-ami-2-upgrade-grub2-pc-modules
  • amazon-linux-ami-2-upgrade-grub2-tools
  • amazon-linux-ami-2-upgrade-grub2-tools-efi
  • amazon-linux-ami-2-upgrade-grub2-tools-extra
  • amazon-linux-ami-2-upgrade-grub2-tools-minimal

References

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