vulnerability
SUSE: CVE-2022-3775: SUSE Linux Security Advisory
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:N/I:C/A:C) | Nov 21, 2022 | Nov 22, 2022 | Jan 28, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:S/C:N/I:C/A:C)
Published
Nov 21, 2022
Added
Nov 22, 2022
Modified
Jan 28, 2025
Description
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
Solutions
suse-upgrade-grub2suse-upgrade-grub2-arm64-efisuse-upgrade-grub2-arm64-efi-debugsuse-upgrade-grub2-branding-upstreamsuse-upgrade-grub2-i386-pcsuse-upgrade-grub2-i386-pc-debugsuse-upgrade-grub2-powerpc-ieee1275suse-upgrade-grub2-powerpc-ieee1275-debugsuse-upgrade-grub2-s390x-emususe-upgrade-grub2-s390x-emu-debugsuse-upgrade-grub2-snapper-pluginsuse-upgrade-grub2-systemd-sleep-pluginsuse-upgrade-grub2-x86_64-efisuse-upgrade-grub2-x86_64-efi-debugsuse-upgrade-grub2-x86_64-xen
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