Ubuntu
grub2 package

grub2 2.02~beta2-36ubuntu3.26 source package in Ubuntu

Changelog

grub2 (2.02~beta2-36ubuntu3.26) xenial; urgency=medium

  [ Chris Coulson ]
  * SECURITY UPDATE: Heap buffer overflow when encountering commands that
    cannot be tokenized to less than 8192 characters.
    - 0082-yylex-Make-lexer-fatal-errors-actually-be-fatal.patch: Make
      fatal lexer errors actually be fatal
    - CVE-2020-10713
  * SECURITY UPDATE: Multiple integer overflow bugs that could result in
    heap buffer allocations that were too small and subsequent heap buffer
    overflows when handling certain filesystems, font files or PNG images.
    - 0083-safemath-Add-some-arithmetic-primitives-that-check-f.patch: Add
      arithmetic primitives that allow for overflows to be detected
    - 0084-calloc-Make-sure-we-always-have-an-overflow-checking.patch:
      Make sure that there is always an overflow checking implementation
      of calloc() available
    - 0085-calloc-Use-calloc-at-most-places.patch: Use calloc where
      appropriate
    - 0086-malloc-Use-overflow-checking-primitives-where-we-do-.patch: Use
      overflow-safe arithmetic primitives when performing allocations
      based on the results of operations that might overflow
    - 0094-hfsplus-fix-two-more-overflows.patch: Fix integer overflows in
      hfsplus
    - 0095-lvm-fix-two-more-potential-data-dependent-alloc-over.patch: Fix
      more potential integer overflows in lvm
    - CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311
  * SECURITY UPDATE: Use-after-free when executing a command that causes
    a currently executing function to be redefined.
    - 0092-script-Remove-unused-fields-from-grub_script_functio.patch:
      Remove unused fields from grub_script_function
    - 0093-script-Avoid-a-use-after-free-when-redefining-a-func.patch:
      Avoid a use-after-free when redefining a function during execution
    - CVE-2020-15706
  * SECURITY UPDATE: Integer overflows that could result in heap buffer
    allocations that were too small and subsequent heap buffer overflows
    during initrd loading.
    - 0105-linux-Fix-integer-overflows-in-initrd-size-handling.patch: Fix
      integer overflows in initrd size handling
    - 0106-efilinux-Fix-integer-overflows-in-grub_cmd_initrd.patch: Fix
      integer overflows in linuxefi grub_cmd_initrd
    - CVE-2020-15707
  * Various fixes as a result of code review and static analysis:
    - 0087-iso9660-Don-t-leak-memory-on-realloc-failures.patch: Fix a
     memory leak on realloc failures when processing symbolic links
    - 0088-font-Do-not-load-more-than-one-NAME-section.patch: Fix a
      memory leak when processing font files with more than one NAME
      section
    - 0089-gfxmenu-Fix-double-free-in-load_image.patch: Zero self->bitmap
      after it is freed in order to avoid a potential double free later on
    - 0090-lzma-Make-sure-we-don-t-dereference-past-array.patch: Fix an
      out-of-bounds read in LzmaEncode
    - 0091-tftp-Do-not-use-priority-queue.patch: Refactor tftp to not use
      priority queues and fix a double free
    - 0096-efi-fix-some-malformed-device-path-arithmetic-errors.patch: Fix
      various arithmetic errors with malformed device paths
    - 0098-Fix-a-regression-caused-by-efi-fix-some-malformed-de.patch: Fix
      a NULL deref in the chainloader command introduced by a previous
      patch
    - 0100-chainloader-Avoid-a-double-free-when-validation-fail.patch:
      Avoid a double free in the chainloader command when validation fails
    - 0101-relocator-Protect-grub_relocator_alloc_chunk_addr-in.patch:
      Protect grub_relocator_alloc_chunk_addr input arguments against
      integer overflow / underflow
    - 0102-relocator-Protect-grub_relocator_alloc_chunk_align-m.patch:
      Protect grub_relocator_alloc_chunk_align max_addr argument against
      integer underflow
    - 0103-relocator-Fix-grub_relocator_alloc_chunk_align-top-m.patch: Fix
      grub_relocator_alloc_chunk_align top memory allocation
    - 0104-linux-loader-avoid-overflow-on-initrd-size-calculati.patch:
      Avoid overflow on initrd size calculation
  * debian/patches/linuxefi_disable_sb_fallback.patch: Disallow unsigned
    kernels if UEFI Secure Boot is enabled.  If UEFI Secure Boot is enabled
    and kernel signature verification fails, do not boot the kernel. Patch
    from Linn Crosetto. (LP: #1401532)
  * ubuntu-Make-the-linux-command-in-EFI-grub-always-try.patch:
    - Make the linux command in EFI grub always try EFI handover

  [ Dimitri John Ledkov ]
  * SECURITY UPDATE: Grub does not enforce kernel signature validation
    when the shim protocol isn't present.
    - 0097-linuxefi-fail-kernel-validation-without-shim-protoco.patch:
      Fail kernel validation if the shim protocol isn't available
    - CVE-2020-15705

 -- Chris Coulson <email address hidden>  Mon, 20 Jul 2020 21:28:33 +0100

Upload details

Uploaded by:
Chris Coulson
Uploaded to:
Xenial
Original maintainer:
Ubuntu Developers
Architectures:
any
Section:
admin
Urgency:
Medium Urgency

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grub2_2.02~beta2-36ubuntu3.26.debian.tar.xz 1.1 MiB cfb6c95d142a4923d9feceabe33c65dba0bbc70067e4333f8ed492b7b70ff6f5
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View changes file

Binary packages built by this source

grub-common: GRand Unified Bootloader (common files)

 This package contains common files shared by the distinct flavours of GRUB.
 It is shared between GRUB Legacy and GRUB 2, although a number of files
 specific to GRUB 2 are here as long as they do not break GRUB Legacy.

grub-common-dbgsym: debug symbols for package grub-common

 This package contains common files shared by the distinct flavours of GRUB.
 It is shared between GRUB Legacy and GRUB 2, although a number of files
 specific to GRUB 2 are here as long as they do not break GRUB Legacy.

grub-coreboot: GRand Unified Bootloader, version 2 (Coreboot version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 platforms running the Coreboot firmware.

grub-coreboot-bin: GRand Unified Bootloader, version 2 (Coreboot binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 platforms running the Coreboot firmware. It will not automatically install
 GRUB as the active boot loader, nor will it automatically update grub.cfg
 on upgrade, so most people should install grub-coreboot instead.

grub-coreboot-dbg: GRand Unified Bootloader, version 2 (Coreboot debug files)

 This package contains debugging files for grub-coreboot-bin. You only need
 these if you are trying to debug GRUB using its GDB stub.

grub-efi: GRand Unified Bootloader, version 2 (dummy package)

 This is a dummy transitional package that depends on either grub-efi-ia32 or
 grub-efi-amd64, depending on the architecture.

grub-efi-amd64: GRand Unified Bootloader, version 2 (EFI-AMD64 version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This is a dependency package for a version of GRUB that has been built for
 use with the EFI-AMD64 architecture, as used by Intel Macs (unless a BIOS
 interface has been activated). Installing this package indicates that this
 version of GRUB should be the active boot loader.

grub-efi-amd64-bin: GRand Unified Bootloader, version 2 (EFI-AMD64 modules)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains GRUB modules that have been built for use with the
 EFI-AMD64 architecture, as used by Intel Macs (unless a BIOS interface has
 been activated). It can be installed in parallel with other flavours, but
 will not automatically install GRUB as the active boot loader nor
 automatically update grub.cfg on upgrade unless grub-efi-amd64 is also
 installed.

grub-efi-amd64-dbg: GRand Unified Bootloader, version 2 (EFI-AMD64 debug files)

 This package contains debugging files for grub-efi-amd64-bin. You only
 need these if you are trying to debug GRUB using its GDB stub.

grub-efi-arm: GRand Unified Bootloader, version 2 (ARM UEFI version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use on ARM
 systems with UEFI.

grub-efi-arm-bin: GRand Unified Bootloader, version 2 (ARM UEFI binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use on ARM
 systems with UEFI. It will not automatically install GRUB as the active
 boot loader, nor will it automatically update grub.cfg on upgrade, so most
 people should install grub-efi-arm instead.

grub-efi-arm-dbg: GRand Unified Bootloader, version 2 (ARM UEFI debug files)

 This package contains debugging files for grub-efi-arm-bin. You only need
 these if you are trying to debug GRUB using its GDB stub.

grub-efi-arm64: GRand Unified Bootloader, version 2 (ARM64 UEFI version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This is a dependency package for a version of GRUB that has been built for
 use on ARM64 systems with UEFI. Installing this package indicates that
 this version of GRUB should be the active boot loader.

grub-efi-arm64-bin: GRand Unified Bootloader, version 2 (ARM64 UEFI modules)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains GRUB modules that have been built for use on ARM64
 systems with UEFI. It can be installed in parallel with other flavours,
 but will not automatically install GRUB as the active boot loader nor
 automatically update grub.cfg on upgrade unless grub-efi-arm64 is also
 installed.

grub-efi-arm64-dbg: GRand Unified Bootloader, version 2 (ARM64 UEFI debug files)

 This package contains debugging files for grub-efi-arm64-bin. You only
 need these if you are trying to debug GRUB using its GDB stub.

grub-efi-ia32: GRand Unified Bootloader, version 2 (EFI-IA32 version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 EFI-IA32 architecture, such as the one provided by Intel Macs (that is, unless
 a BIOS interface has been activated).

grub-efi-ia32-bin: GRand Unified Bootloader, version 2 (EFI-IA32 binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 EFI-IA32 architecture, such as the one provided by Intel Macs (that is, unless
 a BIOS interface has been activated). It will not automatically install
 GRUB as the active boot loader, nor will it automatically update grub.cfg
 on upgrade, so most people should install grub-efi-ia32 instead.

grub-efi-ia32-dbg: GRand Unified Bootloader, version 2 (EFI-IA32 debug files)

 This package contains debugging files for grub-efi-ia32-bin. You only need
 these if you are trying to debug GRUB using its GDB stub.

grub-emu: GRand Unified Bootloader, version 2 (emulated version)

 This package contains grub-emu, an emulated version of GRUB. It is only
 provided for debugging purposes.

grub-emu-dbg: GRand Unified Bootloader, version 2 (emulated debug files)

 This package contains debugging files for grub-emu. You only need these if
 you are trying to debug GRUB using its GDB stub.

grub-emu-dbgsym: debug symbols for package grub-emu

 This package contains grub-emu, an emulated version of GRUB. It is only
 provided for debugging purposes.

grub-firmware-qemu: GRUB firmware image for QEMU

 This package contains a binary of GRUB that has been built for use as
 firmware for QEMU. It can be used as a replacement for other PC BIOS
 images provided by seabios, bochsbios, and so on.
 .
 In order to make QEMU use this firmware, simply add `-bios grub.bin' when
 invoking it.
 .
 This package behaves in the same way as GRUB for coreboot, but doesn't
 contain any code from coreboot itself, and is only suitable for QEMU. If
 you want to install GRUB as firmware on real hardware, you need to use the
 grub-coreboot package, and manually combine that with coreboot.

grub-ieee1275: GRand Unified Bootloader, version 2 (Open Firmware version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 Open Firmware implementations.

grub-ieee1275-bin: GRand Unified Bootloader, version 2 (Open Firmware binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 Open Firmware implementations. It will not automatically install GRUB as
 the active boot loader, nor will it automatically update grub.cfg on
 upgrade, so most people should install grub-ieee1275 instead.

grub-ieee1275-bin-dbgsym: debug symbols for package grub-ieee1275-bin

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 Open Firmware implementations. It will not automatically install GRUB as
 the active boot loader, nor will it automatically update grub.cfg on
 upgrade, so most people should install grub-ieee1275 instead.

grub-ieee1275-dbg: GRand Unified Bootloader, version 2 (Open Firmware debug files)

 This package contains debugging files for grub-ieee1275-bin. You only
 need these if you are trying to debug GRUB using its GDB stub.

grub-linuxbios: GRand Unified Bootloader, version 2 (dummy package)

 This is a dummy transitional package that depends on grub-coreboot.

grub-mount-udeb: export GRUB filesystems using FUSE
grub-mount-udeb-dbgsym: debug symbols for package grub-mount-udeb
grub-pc: GRand Unified Bootloader, version 2 (PC/BIOS version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
  - VESA-based graphical mode with background image support and complete 24-bit
    color set.
  - Support for extended charsets. Users can write UTF-8 text to their menu
    entries.
 .
 This package contains a version of GRUB that has been built for use with
 traditional PC/BIOS architecture.

grub-pc-bin: GRand Unified Bootloader, version 2 (PC/BIOS binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
  - VESA-based graphical mode with background image support and complete 24-bit
    color set.
  - Support for extended charsets. Users can write UTF-8 text to their menu
    entries.
 .
 This package contains a version of GRUB that has been built for use with
 traditional PC/BIOS architecture. It will not automatically install GRUB
 as the active boot loader, nor will it automatically update grub.cfg on
 upgrade, so most people should install grub-pc instead.

grub-pc-bin-dbgsym: debug symbols for package grub-pc-bin

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
  - VESA-based graphical mode with background image support and complete 24-bit
    color set.
  - Support for extended charsets. Users can write UTF-8 text to their menu
    entries.
 .
 This package contains a version of GRUB that has been built for use with
 traditional PC/BIOS architecture. It will not automatically install GRUB
 as the active boot loader, nor will it automatically update grub.cfg on
 upgrade, so most people should install grub-pc instead.

grub-pc-dbg: GRand Unified Bootloader, version 2 (PC/BIOS debug files)

 This package contains debugging files for grub-pc-bin. You only need these
 if you are trying to debug GRUB using its GDB stub.

grub-rescue-pc: GRUB bootable rescue images, version 2 (PC/BIOS version)

 This package contains three GRUB rescue images that have been built for use
 with the traditional PC/BIOS architecture:
 .
  - grub-rescue-floppy.img: floppy image.
  - grub-rescue-cdrom.iso: El Torito CDROM image.
  - grub-rescue-usb.img: USB image.

grub-theme-starfield: GRand Unified Bootloader, version 2 (starfield theme)

 This is the default theme for GRUB's graphical menu.

grub-uboot: GRand Unified Bootloader, version 2 (ARM U-Boot version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 ARM systems with U-Boot.

grub-uboot-bin: GRand Unified Bootloader, version 2 (ARM U-Boot binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 ARM systems with U-Boot. It will not automatically install GRUB as the
 active boot loader, nor will it automatically update grub.cfg on upgrade,
 so most people should install grub-uboot instead.

grub-uboot-dbg: GRand Unified Bootloader, version 2 (ARM U-Boot debug files)

 This package contains debugging files for grub-uboot-bin. You only need
 these if you are trying to debug GRUB using its GDB stub.

grub-xen: GRand Unified Bootloader, version 2 (Xen version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 the Xen hypervisor (i.e. PV-GRUB).

grub-xen-bin: GRand Unified Bootloader, version 2 (Xen binaries)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package contains a version of GRUB that has been built for use with
 the Xen hypervisor (i.e. PV-GRUB). It will not automatically install GRUB
 as the active boot loader, nor will it automatically update grub.cfg on
 upgrade, so most people should install grub-xen instead.

grub-xen-dbg: GRand Unified Bootloader, version 2 (Xen debug files)

 This package contains debugging files for grub-xen-bin. You only need
 these if you are trying to debug GRUB using its GDB stub.

grub-xen-host: GRand Unified Bootloader, version 2 (Xen host version)

 GRUB is a portable, powerful bootloader. This version of GRUB is based on a
 cleaner design than its predecessors, and provides the following new features:
 .
  - Scripting in grub.cfg using BASH-like syntax.
  - Support for modern partition maps such as GPT.
  - Modular generation of grub.cfg via update-grub. Packages providing GRUB
    add-ons can plug in their own script rules and trigger updates by invoking
    update-grub.
 .
 This package arranges for GRUB binary images which can be used to boot a Xen
 guest (i.e. PV-GRUB) to be present in the control domain filesystem.

grub2: GRand Unified Bootloader, version 2 (dummy package)

 This is a dummy transitional package to handle GRUB 2 upgrades. It can be
 safely removed.

grub2-common: GRand Unified Bootloader (common files for version 2)

 This package contains common files shared by the distinct flavours of GRUB.
 The files in this package are specific to GRUB 2, and would break GRUB
 Legacy if installed on the same system.

grub2-common-dbgsym: debug symbols for package grub2-common

 This package contains common files shared by the distinct flavours of GRUB.
 The files in this package are specific to GRUB 2, and would break GRUB
 Legacy if installed on the same system.