[Bug 1996950] Re: CVE-2022-2601, CVE-2022-3775: font security fixes

[Launchpad Bug Tracker]

This bug was fixed in the package grub2-unsigned - 2.06-2ubuntu15

---------------
grub2-unsigned (2.06-2ubuntu15) lunar; urgency=medium

  * grub-multi-install: Reset partition type between partitions (LP: #1997795)
  * Source package generated from src:grub2 using make -f ./debian/rules
    generate-grub2-unsigned

grub2 (2.06-2ubuntu14) kinetic; urgency=medium

  * SECURITY UPDATE: Fix out of bounds writes due specially crafted fonts.
    - add debian/patches/font-Fix-several-integer-overflows-in-grub_font_construct.patch
    - add debian/patches/font-Fix-an-integer-underflow-in-blit_comb.patch
    - CVE-2022-2601, CVE-2022-3775
    - LP: #1996950
  * Fix various issues as a result of fuzzing, static analysis and code
    review:
    - add debian/patches/font-Reject-glyphs-exceeds-font-max_glyph_width-or-font-m.patch
    - add debian/patches/font-Fix-size-overflow-in-grub_font_get_glyph_internal.patch
    - add debian/patchces/font-Remove-grub_font_dup_glyph.patch
    - add debian/patches/font-Fix-integer-overflow-in-ensure_comb_space.patch
    - add debian/patches/font-Fix-integer-overflow-in-BMP-index.patch
    - add debian/patches/font-Fix-integer-underflow-in-binary-search-of-char-index.patch
    - add debian/patches/fbutil-Fix-integer-overflow.patch
    - add debian/patches/font-Harden-grub_font_blit_glyph-and-grub_font_blit_glyph.patch
    - add debian/patches/font-Assign-null_font-to-glyphs-in-ascii_font_glyph.patch
    - add debian/patches/normal-charset-Fix-an-integer-overflow-in-grub_unicode_ag.patch
  * Enforce verification of fonts when secure boot is enabled:
    - add debian/patches/kern-efi-sb-Enforce-verification-of-font-files.patch
  * Bundle unicode.pf2 in a squashfs memdisk attached to the signed EFI binary
    - update debian/control
    - update debian/build-efi-image
    - add debian/patches/font-Try-opening-fonts-from-the-bundled-memdisk.patch
  * Fix LP: #1997006 - add support for performing measurements to RTMRs
    - add debian/patches/commands-efi-tpm-Refine-the-status-of-log-event.patch
    - add debian/patches/commands-efi-tpm-Use-grub_strcpy-instead-of-grub_memcpy.patch
    - add debian/patches/efi-tpm-Add-EFI_CC_MEASUREMENT_PROTOCOL-support.patch
  * Fix the squashfs tests during the build
    - remove debian/patches/ubuntu-fix-reproducible-squashfs-test.patch
    - add debian/patches/tests-Explicitly-unset-SOURCE_DATE_EPOCH-before-running-f.patch
  * Bump SBAT generation:
    - update debian/sbat.ubuntu.csv.in

 -- Julian Andres Klode <juliank at ubuntu.com>  Thu, 01 Dec 2022 16:30:53
+0100

** Changed in: grub2-unsigned (Ubuntu Lunar)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1996950

Title:
  CVE-2022-2601, CVE-2022-3775: font security fixes

Status in grub2-signed package in Ubuntu:
  Fix Committed
Status in grub2-unsigned package in Ubuntu:
  Fix Released
Status in grub2-signed source package in Bionic:
  New
Status in grub2-unsigned source package in Bionic:
  New
Status in grub2-signed source package in Focal:
  New
Status in grub2-unsigned source package in Focal:
  New
Status in grub2-signed source package in Jammy:
  New
Status in grub2-unsigned source package in Jammy:
  New
Status in grub2-signed source package in Kinetic:
  New
Status in grub2-unsigned source package in Kinetic:
  New
Status in grub2-signed source package in Lunar:
  Fix Committed
Status in grub2-unsigned source package in Lunar:
  Fix Released

Bug description:
  [Impact]
  security update staged in updates

  [Test plan]
  Boot it on multiple systems.

  [Where problems could occur]
  Font loading is disabled, could cause rendering issues

  Unicode font stuffed in xz squashfs, could cause more memory issues
  during boot

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