Non notée
CVE-2020-14372 A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when…
Description
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| grub2 | Versions non publiées |
Références
- bugzilla.redhat.com bugzilla.redhat.com
- access.redhat.com access.redhat.com
- security.netapp.com security.netapp.com
- FEDORA-2021-cab258a413 lists.fedoraproject.org
- GLSA-202104-05 security.gentoo.org
Chronologie
- Publiée
- Dernière modification
Autres CVE de grub2
Les 14 CVE de grub2 →
CVE-2022-3775
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and…
7.1
Élevée
CVE-2022-2601
A buffer overflow was found in grub_font_construct_glyph()
8.6
Élevée
CVE-2021-3697
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written…
Non notée
CVE-2021-3696
A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader
Non notée