grub2: backport GRUB2 security fixes for six CVEs #2

Merged
sbelikov merged 3 commits from cve-grub2-CVE-2024-45782-CVE-2024-56737-CVE-2025-0678 into niceos-5.2 2026-05-26 04:12:02 +03:00
Owner

Summary

Backport GRUB2 security fixes relevant to grub2 2.12-1 for the following CVEs:

  • CVE-2024-45782
  • CVE-2024-56737
  • CVE-2025-0678
  • CVE-2025-0689
  • CVE-2025-1125
  • CVE-2025-61662

Impact

These issues affect filesystem handlers and gettext module lifetime handling in GRUB2. Several of them can lead to heap corruption or use-after-free in the pre-boot environment, with potential secure-boot bypass impact.

Strategy

Use targeted backports into the existing 2.12 branch rather than a full major-version jump, unless downstream policy prefers a broader update path.

Validation

  • Rebuild the RPM set for all produced subpackages.
  • Verify EFI image generation and module packaging.
  • Run GRUB2 emulator and basic bootloader smoke tests.
  • Exercise safe filesystem parsing paths with benign test fixtures where available.
## Summary Backport GRUB2 security fixes relevant to grub2 2.12-1 for the following CVEs: - CVE-2024-45782 - CVE-2024-56737 - CVE-2025-0678 - CVE-2025-0689 - CVE-2025-1125 - CVE-2025-61662 ## Impact These issues affect filesystem handlers and gettext module lifetime handling in GRUB2. Several of them can lead to heap corruption or use-after-free in the pre-boot environment, with potential secure-boot bypass impact. ## Strategy Use targeted backports into the existing 2.12 branch rather than a full major-version jump, unless downstream policy prefers a broader update path. ## Validation - Rebuild the RPM set for all produced subpackages. - Verify EFI image generation and module packaging. - Run GRUB2 emulator and basic bootloader smoke tests. - Exercise safe filesystem parsing paths with benign test fixtures where available.
sbelikov merged commit 3dafdfa57f into niceos-5.2 2026-05-26 04:12:02 +03:00
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