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: reader/jpeg: Heap OOB Write during JPEG parsing (CVE-2024-45774) * grub2: commands/extcmd: Missing check for failed allocation (CVE-2024-45775) * 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: fs/hfs+: refcount can be decremented twice (CVE-2024-45783) * grub2: command/gpg: Use-after-free due to hooks not being removed on module unload (CVE-2025-0622) * grub2: UFS: Integer overflow may lead to heap based out-of-bounds write when handling symlinks (CVE-2025-0677) * grub2: read: Integer overflow may lead to out-of-bounds write (CVE-2025-0690)

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 AlmaLinuxRelease Notes linked from the References section.

Affected: Alpaquita:23: grub, Alpaquita:stream: grub

A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.

A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.

Affected: openEuler:20.03-LTS-SP4: 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 grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.(CVE-2024-45774)

A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub's argument list. However, it fails to check in case the memory allocation fails. Once the allocation fails, a NULL point will be processed by the parse_option() function, leading grub to crash or, in some rare scenarios, corrupt the IVT data.(CVE-2024-45775)

When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.(CVE-2024-45776)

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by…

grub2-2.12-35.1 on GA media

Security update for grub2

Affected: Ubuntu:Pro:14.04:LTS: grub2, Ubuntu:Pro:14.04:LTS: grub2-signed, Ubuntu:16.04:LTS: grub2-signed, Ubuntu:16.04:LTS: grub2-unsigned, Ubuntu:18.04:LTS: grub2-signed, Ubuntu:18.04:LTS: grub2-unsigned, Ubuntu:20.04:LTS: grub2-signed, Ubuntu:20.04:LTS: grub2-unsigned, Ubuntu:22.04:LTS: grub2-signed, Ubuntu:22.04:LTS: grub2-unsigned and 6 more

A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.

Ein Angreifer kann mehrere Schwachstellen in Grub ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben oder nicht spezifizierte Auswirkungen zu verursachen.