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SUSE: CVE-2022-2601: SUSE Linux Security Advisory

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SUSE: CVE-2022-2601: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/21/2022
Created
11/23/2022
Added
11/22/2022
Modified
12/19/2022

Description

A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.

Solution(s)

  • suse-upgrade-grub2
  • suse-upgrade-grub2-arm64-efi
  • suse-upgrade-grub2-arm64-efi-debug
  • suse-upgrade-grub2-branding-upstream
  • suse-upgrade-grub2-i386-pc
  • suse-upgrade-grub2-i386-pc-debug
  • suse-upgrade-grub2-powerpc-ieee1275
  • suse-upgrade-grub2-powerpc-ieee1275-debug
  • suse-upgrade-grub2-s390x-emu
  • suse-upgrade-grub2-s390x-emu-debug
  • suse-upgrade-grub2-snapper-plugin
  • suse-upgrade-grub2-systemd-sleep-plugin
  • suse-upgrade-grub2-x86_64-efi
  • suse-upgrade-grub2-x86_64-efi-debug
  • suse-upgrade-grub2-x86_64-xen

References

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