CVE-2020-14372

CVE-2020-14372: Contourner pas si Secure Boot avec une "simple astuce" Détails de la vulnérabilité Un jour, j'ai tapé "help" dans la console de GRUB2 et j'ai vu des commandes vraiment "amusantes" : readbyte ADDR: Lire une valeur 8 bits à ADDR writebyte ADDR VAL: Écrire la valeur 8 bits VAL à ADDR...

shim-review

Ce dépôt est destiné à l'examen des demandes de signature de shim. Pour créer une demande d'examen : clonez ce dépôt de préférence forkez-le modifiez le modèle ci-dessous ajoutez le shim.efi à signer ajoutez les journaux de construction ajoutez tous les binaires/certificats/hachages SHA256...

Super-UEFIinSecureBoot-Disk

Super UEFIinSecureBoot Disk Super UEFIinSecureBoot Disk est une image amorçable proof-of-concept non activement maintenue ou améliorée avec chargeur de démarrage GRUB2 conçue pour être utilisée comme base pour les clés USB de récupération. Fonctionnalité clé : le disque est entièrement fonctionne...

CVE-2025-0690

CVE-2025-0690 : Vulnérabilité de Débordement d'Entiers dans GRUB2 🛡️ Description Générale CVE-2025-0690 est une vulnérabilité critique de débordement d'entiers dans le chargeur d'amorçage GRUB2 , permettant l'exécution de code arbitraire et le contournement de Secure Boot. Cette faille affecte les...

slot2

slot2 slot2: a two-stage UEFI GRUB2 bootkit that persists a pre-OS networked implant on Amazon Linux 2023 on AWS EC2 UEFI x8664. by cenobyte [email protected] 2026 https://github.com/cenobyte-vincit/slot2 Summary slot2 is a bootkit for Amazon Linux 2023 on EC2. The AWS EC2 UEFI firmware load...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module that serves as a dependency without checking whether any other dependent modules are still loaded, leading to a “use-after-free” scenario. This could allow arbitrary code to be...

Astra Linux – Vulnerability in grub2

A vulnerability related to operations after freeing memory has been discovered in GRUB’s gettext module. This flaw arises from a programming error where the gettext command remains registered in memory even after its associated module is unloaded. An attacker can exploit this condition by invokin...

CVE-2026-97876

A flaw was found in GRUB2. The bootloader insufficiently validates memory addresses passed to the serial configuration command, allowing arbitrary system memory to be targeted instead of a legitimate serial communication device. A local attacker with control over GRUB's boot configuration can...

Rocky Linux 8.8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-efi-aa64 / etc Multiple Vulnerabilities (ciqsa-2026_0378)

The Rocky Linux 8.8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-20260378 advisory. This advisory aggregates security fixes for the grub2 SRPM in CIQ LTS 8.8. It addresses 4 CVEs: CVE-2025-0624, CVE-2024-1048, CVE-2023-4693, CVE-2023-469...

Rocky Linux 8.6 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-efi-aa64 / etc Multiple Vulnerabilities (ciqsa-2026_0881)

The Rocky Linux 8.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-20260881 advisory. This advisory aggregates security fixes for the grub2 SRPM in CIQ LTS 8.6. It addresses 2 CVEs: CVE-2022-2601, CVE-2022-3775. Tenable has extracted the...

Rocky Linux 8.6 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-efi-aa64 / etc Multiple Vulnerabilities (ciqsa-2026_1267)

The Rocky Linux 8.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-20261267 advisory. This advisory aggregates security fixes for the grub2 SRPM in CIQ LTS 8.6. It addresses 3 CVEs: CVE-2024-1048, CVE-2023-4693, CVE-2023-4692. Tenable has...

CentOS Linux 8.5 [TuxCare] Security Update: grub2-common / grub2-efi-ia32 / grub2-efi-ia32-cdboot / etc (CENTOS8.5:CLSA-2026:1771955086)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1771955086 advisory. - A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext...

AlmaLinux 9.2 [TuxCare] Security Update: grub2-common / grub2-efi-aa64-modules / grub2-efi-x64 / etc (ALMALINUX9.2:CLSA-2024:1724871398)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1724871398 advisory. - An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a...

Rocky Linux 8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc (crlsa-2022_2110)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20222110 advisory. grub2: Incorrect permission in grub.cfg allow unprivileged user to read the file content CVE-2021-3981 Tenable has extracted the preceding description block directl...

CentOS Linux 8 [TuxCare] Security Update: grub2-efi-ia32-cdboot / grub2-efi-ia32-modules / grub2-efi-x64 / etc Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2025:1744213211)

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2025:1744213211 advisory. - A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of...

Rocky Linux 8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc Multiple Vulnerabilities (crlsa-2023_0049)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20230049 advisory. grub2: Buffer overflow in grubfontconstructglyph can lead to out-of-bound write and possible secure boot bypass CVE-2022-2601 grub2: Heap based out-of-boun...

Rocky Linux 8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc Multiple Vulnerabilities (crlsa-2022_5095)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20225095 advisory. grub2: Integer underflow in grubnetrecvip4packets CVE-2022-28733 grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap CVE-2021-3695...

Rocky Linux 8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc Multiple Vulnerabilities (crlsa-2024_3184)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20243184 advisory. grub2: grub2-set-bootflag can be abused by local pseudo-users CVE-2024-1048 grub2: Out-of-bounds write at fs/ntfs.c may lead to unsigned code execution...

Rocky Linux 9 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc (crlsa-2026_4760)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20264760 advisory. grub2: Missing unregister call for gettext command may lead to use-after-free CVE-2025-61662 Tenable has extracted the preceding description block directly from the...

Rocky Linux 10.0 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc Multiple Vulnerabilities (crlsa-2025_16154)

The Rocky Linux 10.0 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202516154 advisory. grub2: grub-core/gettext: Integer overflow leads to Heap OOB Write and Read. CVE-2024-45776 grub2: fs/ufs: OOB write in the heap CVE-2024-45781 grub2:...