ALSA-2022:5095
- Source
- https://errata.almalinux.org/8/ALSA-2022-5095.html
- Import Source
- https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2022:5095.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALSA-2022:5095
- Related
- Published
- 2022-06-16T00:00:00Z
- Modified
- 2022-08-23T15:20:46Z
- Summary
- Important: grub2, mokutil, shim, and shim-unsigned-x64 security update
- Details
-
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. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Security Fix(es): * 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) * grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling (CVE-2021-3696) * grub2: Crafted JPEG image can lead to buffer underflow write in the heap (CVE-2021-3697) * grub2: Out-of-bound write when handling split HTTP headers (CVE-2022-28734) * grub2: shimlock verifier allows non-kernel files to be loaded (CVE-2022-28735) * grub2: use-after-free in grubcmd_chainloader() (CVE-2022-28736) * shim: Buffer overflow when loading crafted EFI images (CVE-2022-28737) 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.
- References
-
- https://access.redhat.com/errata/RHSA-2022:5095
- https://access.redhat.com/security/cve/CVE-2021-3695
- https://access.redhat.com/security/cve/CVE-2021-3696
- https://access.redhat.com/security/cve/CVE-2021-3697
- https://access.redhat.com/security/cve/CVE-2022-28733
- https://access.redhat.com/security/cve/CVE-2022-28734
- https://access.redhat.com/security/cve/CVE-2022-28735
- https://access.redhat.com/security/cve/CVE-2022-28736
- https://access.redhat.com/security/cve/CVE-2022-28737
- https://bugzilla.redhat.com/1991685
- https://bugzilla.redhat.com/1991686
- https://bugzilla.redhat.com/1991687
- https://bugzilla.redhat.com/2083339
- https://bugzilla.redhat.com/2090463
- https://bugzilla.redhat.com/2090857
- https://bugzilla.redhat.com/2090899
- https://bugzilla.redhat.com/2092613
- https://errata.almalinux.org/8/ALSA-2022-5095.html
Affected packages
AlmaLinux:8 / grub2-common
Package
- Name
- grub2-common
AlmaLinux:8 / grub2-efi-aa64
Package
- Name
- grub2-efi-aa64
AlmaLinux:8 / grub2-efi-aa64-cdboot
Package
- Name
- grub2-efi-aa64-cdboot
AlmaLinux:8 / grub2-efi-aa64-modules
Package
- Name
- grub2-efi-aa64-modules
AlmaLinux:8 / grub2-efi-ia32
Package
- Name
- grub2-efi-ia32
AlmaLinux:8 / grub2-efi-ia32-cdboot
Package
- Name
- grub2-efi-ia32-cdboot
AlmaLinux:8 / grub2-efi-ia32-modules
Package
- Name
- grub2-efi-ia32-modules
AlmaLinux:8 / grub2-efi-x64
Package
- Name
- grub2-efi-x64
AlmaLinux:8 / grub2-efi-x64-cdboot
Package
- Name
- grub2-efi-x64-cdboot
AlmaLinux:8 / grub2-efi-x64-modules
Package
- Name
- grub2-efi-x64-modules
AlmaLinux:8 / grub2-pc
Package
- Name
- grub2-pc
AlmaLinux:8 / grub2-pc-modules
Package
- Name
- grub2-pc-modules
AlmaLinux:8 / grub2-ppc64le-modules
Package
- Name
- grub2-ppc64le-modules
AlmaLinux:8 / grub2-tools
Package
- Name
- grub2-tools
AlmaLinux:8 / grub2-tools-efi
Package
- Name
- grub2-tools-efi
AlmaLinux:8 / grub2-tools-extra
Package
- Name
- grub2-tools-extra
AlmaLinux:8 / grub2-tools-minimal
Package
- Name
- grub2-tools-minimal
AlmaLinux:8 / shim-aa64
Package
- Name
- shim-aa64
AlmaLinux:8 / shim-ia32
Package
- Name
- shim-ia32
AlmaLinux:8 / shim-unsigned-x64
Package
- Name
- shim-unsigned-x64