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ALSA-2024:2456 — Moderate: grub2 security update

2026-10-03T11:59:59.726420+00:00

Affected: AlmaLinux:9: grub2-common, AlmaLinux:9: grub2-efi-aa64, AlmaLinux:9: grub2-efi-aa64-cdboot, AlmaLinux:9: grub2-efi-aa64-modules, AlmaLinux:9: grub2-efi-x64, AlmaLinux:9: grub2-efi-x64-cdboot, AlmaLinux:9: grub2-efi-x64-modules, AlmaLinux:9: grub2-pc, AlmaLinux:9: grub2-pc-modules, AlmaLinux:9: grub2-ppc64le and 5 more

The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.

Security Fix(es):

* 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 (CVE-2023-4692) * grub2: out-of-bounds read at fs/ntfs.c (CVE-2023-4693)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

bdu:2024-01386

2026-10-03T11:59:59.726492+00:00

bdu:2024-01386

certfr-2024-avi-0720 — De multiples vulnérabilités ont été découvertes dans IBM QRadar SIEM. Certaines d'entre elles permettent à un attaquant…

2026-10-03T11:59:59.726509+00:00

certfr-2024-avi-0720

EUVD-2026-261509

2026-10-03T11:59:59.726525+00:00

EUVD-2026-261509

fkie_cve-2024-1048

2026-10-03T11:59:59.726535+00:00

A flaw was found in the grub2-set-bootflag utility of grub2. After the fix of CVE-2019-14865, grub2-set-bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv file. If the program is killed before the rename operation, the temporary file will not be removed and may fill the filesystem when invoked multiple times, resulting in a filesystem out of free inodes or blocks.

GHSA-3qrv-r8v8-pmw7

2026-10-03T11:59:59.726557+00:00

gsd-2024-1048

2026-10-03T11:59:59.726571+00:00

gsd-2024-1048

OESA-2024-1253 — grub2 security update

2026-10-03T11:59:59.726581+00:00

Affected: openEuler:20.03-LTS-SP1: grub2, openEuler:20.03-LTS-SP4: grub2, openEuler:22.03-LTS: grub2, openEuler:22.03-LTS-SP1: grub2, openEuler:22.03-LTS-SP2: grub2, openEuler:22.03-LTS-SP3: grub2

GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn. Security Fix(es): A flaw was found in the grub2-set-bootflag utility of grub2. After the fix of CVE-2019-14865, grub2-set-bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv file. If the program is killed before the rename operation, the temporary file will not be removed and may fill the filesystem when invoked multiple times, resulting in a filesystem out of free inodes or blocks.(CVE-2024-1048)

RHSA-2024:2456 — Red Hat Security Advisory: grub2 security update

2026-10-03T11:59:59.726609+00:00

grub2: Out-of-bounds write at fs/ntfs.c may lead to unsigned code execution grub2: out-of-bounds read at fs/ntfs.c grub2: grub2-set-bootflag can be abused by local (pseudo-)users

WID-SEC-W-2024-0308 — Grub: Schwachstelle ermöglicht Denial of Service

2026-10-03T11:59:59.726628+00:00

Ein lokaler Angreifer kann eine Schwachstelle in Grub ausnutzen, um einen Denial of Service Angriff durchzuführen.