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CVE-2022-28737

Status Candidate

Overview

There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.

Related Files

Ubuntu Security Notice USN-6355-1
Posted Sep 8, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6355-1 - Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local attacker could possibly use this to circumvent secure boot protections. Daniel Axtens discovered that specially crafted images could cause out-of-bonds read and write. A local attacker could possibly use this to circumvent secure boot protections. Daniel Axtens discovered that specially crafted images could cause buffer underwrite which allows arbitrary data to be written to a heap. A local attacker could possibly use this to circumvent secure boot protections.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2021-3981, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737, CVE-2022-3775
SHA-256 | c68601357ce389f48c2c2aed91b14822cc8a3b09a8f0b6538ffabaab39253206
Gentoo Linux Security Advisory 202209-12
Posted Sep 26, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202209-12 - Multiple vulnerabilities have been discovered in GRUB, the worst of which may allow for secureboot bypass. Versions less than 2.06 are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2021-3981, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
SHA-256 | 6ed9c7fcb103a96def8481a7caf238738ec32577a4a9992f019f98348d8786ac
Red Hat Security Advisory 2022-5099-01
Posted Jun 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5099-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
SHA-256 | 34246ffd9ca1956890fda4c9acb6dd38a6ae9f42ef9783e9b8715b92cd6d5e58
Red Hat Security Advisory 2022-5100-01
Posted Jun 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5100-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
SHA-256 | 4ae68bf8d9609c4f243193d9fe7abc4a8a8aa94b680c713f385e474d83725f7a
Red Hat Security Advisory 2022-5095-01
Posted Jun 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5095-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
SHA-256 | 4c3ec629c4223eb162af5230c255c58930695266f861587bbbf2094a5e049e04
Red Hat Security Advisory 2022-5096-01
Posted Jun 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5096-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
SHA-256 | 599b664c81a5612e99f1e4c5c07ad0f0223b8a2bc5a4d147cae39fb875d1c284
Red Hat Security Advisory 2022-5098-01
Posted Jun 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5098-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
SHA-256 | eb5658310e362f002091a1f7f759c770aba64922b044eb6f3ef039ee02122cb7
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