A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Shim | Redhat | * | 15.8 (excluding) |
Shim | Redhat | 15.8-rc1 (including) | 15.8-rc1 (including) |
Red Hat Enterprise Linux 7 | RedHat | shim-0:15.8-3.el7 | * |
Red Hat Enterprise Linux 7 | RedHat | shim-signed-0:15.8-1.el7 | * |
Red Hat Enterprise Linux 8 | RedHat | shim-0:15.8-4.el8_9 | * |
Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | shim-0:15.8-2.el8_2 | * |
Red Hat Enterprise Linux 8.2 Telecommunications Update Service | RedHat | shim-0:15.8-2.el8_2 | * |
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | RedHat | shim-0:15.8-2.el8_2 | * |
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | shim-0:15.8-2.el8_4 | * |
Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | shim-0:15.8-2.el8_4 | * |
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | shim-0:15.8-2.el8_4 | * |
Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | shim-0:15.8-2.el8_6 | * |
Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | shim-0:15.8-2.el8 | * |
Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | shim-unsigned-x64-0:15.8-2.el8 | * |
Red Hat Enterprise Linux 9 | RedHat | shim-0:15.8-4.el9_3 | * |
Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | shim-0:15.8-3.el9 | * |
Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | shim-unsigned-aarch64-0:15.8-2.el9 | * |
Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | shim-unsigned-x64-0:15.8-2.el9 | * |
Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | shim-0:15.8-3.el9_2 | * |
Secureboot-db | Ubuntu | bionic | * |
Secureboot-db | Ubuntu | lunar | * |
Secureboot-db | Ubuntu | trusty | * |
Secureboot-db | Ubuntu | xenial | * |
Shim | Ubuntu | bionic | * |
Shim | Ubuntu | devel | * |
Shim | Ubuntu | esm-infra-legacy/trusty | * |
Shim | Ubuntu | esm-infra/xenial | * |
Shim | Ubuntu | focal | * |
Shim | Ubuntu | jammy | * |
Shim | Ubuntu | lunar | * |
Shim | Ubuntu | mantic | * |
Shim | Ubuntu | noble | * |
Shim | Ubuntu | oracular | * |
Shim | Ubuntu | trusty | * |
Shim | Ubuntu | trusty/esm | * |
Shim | Ubuntu | xenial | * |
Shim-signed | Ubuntu | bionic | * |
Shim-signed | Ubuntu | devel | * |
Shim-signed | Ubuntu | esm-infra-legacy/trusty | * |
Shim-signed | Ubuntu | esm-infra/xenial | * |
Shim-signed | Ubuntu | focal | * |
Shim-signed | Ubuntu | jammy | * |
Shim-signed | Ubuntu | lunar | * |
Shim-signed | Ubuntu | mantic | * |
Shim-signed | Ubuntu | noble | * |
Shim-signed | Ubuntu | oracular | * |
Shim-signed | Ubuntu | trusty | * |
Shim-signed | Ubuntu | trusty/esm | * |
Shim-signed | Ubuntu | xenial | * |