shim

shim, un cargador de arranque UEFI de primera etapa shim es una aplicación EFI trivial que, al ejecutarse, intenta abrir y ejecutar otra aplicación. Inicialmente intentará hacerlo mediante las llamadas estándar de EFI LoadImage y StartImage. Si estas fallan porque Secure Boot está habilitado y el...

shim-review

Este repositorio es para la revisión de solicitudes de firma de shim. Para crear una solicitud de revisión: clona este repositorio preferiblemente haz un fork edita la plantilla a continuación agrega el shim.efi que se va a firmar agrega los registros de compilación agrega cualquier...

ShimMe

ShimMe Herramientas de la charla DEFCON 32 "SHIM me what you got - Manipulando Shim y Office para inyección de código" Office Injector - Invoca un método RPC en el servicio OfficeClickToRun que inyecta una DLL en un proceso suspendido que se ejecuta como NT AUTHORITY\SYSTEM lanzado por el servici...

CVE-2026-8863

CVE-2026-8863 Colección de los binarios firmados de shim UEFI Secure Boot afectados por CVE-2026-8863, con la versión de shim incrustada, el firmante Authenticode y los hashes de revocación de cada imagen. Las versiones que incluyen el shim firmado byte-idéntico se consolidan en una sola fila: un...

Rocky Linux 9.6 [TuxCare] Security Update: shim-x64 Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2025:1751552694)

The Rocky Linux 9.6 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2025:1751552694 advisory. - There's a possible overflow in handleimage when shim tries to load and execute crafted EFI executables; The handleimage function...

CentOS Linux 7 [TuxCare] Security Update: mokutil / shim-ia32 / shim-x64 Multiple Vulnerabilities (CENTOS7:CLSA-2025:1742929277)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2025:1742929277 advisory. - There's a possible overflow in handleimage when shim tries to load and execute crafted EFI executables; The handleimage function takes...

AZL-105903 CVE-2026-35189 affecting package shim-unsigned-x64 16.1-2

Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possible Denial of...

AZL-105900 CVE-2026-35189 affecting package shim-unsigned-aarch64 16.1-2

Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possible Denial of...

abstractshimmer

ABSTRACT SHIMMER CVE-2020-15257 Este repositorio contiene el código de exploit de prueba de concepto para CVE-2020-15257, como se describe en nuestra entrada de blog. Aunque está escrito para containerd 1.2.x y 1.3.x, debería funcionar en versiones sin parchear de containerd 1.4.x. $ go build $...

CVE-2026-71458: Observable Response Discrepancy

URLModificationMiddleware resolves named-URL lookups against unfiltered Model.objects before RBAC. The 403→404 shim only rewrites 403 responses, leaving the pk=0 miss path with a different 404 detail string. Differential "Not found." vs "No matches..." reveals whether a named resource org,...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: shim (UTSA-2023-001491)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-001491 advisory. ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: shim (UTSA-2026-091436)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-091436 advisory. There's a possible overflow in handleimage when shim tries to load and execute crafted EFI executables; The handleimage function takes into account the SizeOfRawData...

EulerOS Virtualization 2.10.1 : shim (EulerOS-SA-2026-3855)

According to the versions of the shim packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may...

EulerOS Virtualization 2.10.0 : shim (EulerOS-SA-2026-3889)

According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may...

EulerOS 2.0 SP10 : shim (EulerOS-SA-2026-3770)

According to the versions of the shim packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap...

EulerOS Virtualization 2.12.0 : shim (EulerOS-SA-2026-3673)

According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Issue summary: A specially crafted PKCS7 or S/MIME signed message could trigger a use-after-free during PKCS7 signature...

EulerOS Virtualization 2.11.0 : shim (EulerOS-SA-2026-3560)

According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext acros...

EulerOS Virtualization 2.12.1 : shim (EulerOS-SA-2026-3619)

According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Issue summary: A specially crafted PKCS7 or S/MIME signed message could trigger a use-after-free during PKCS7 signature...

EulerOS 2.0 SP10 : shim (EulerOS-SA-2026-3723)

According to the versions of the shim package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap...

EulerOS Virtualization 2.11.1 : shim (EulerOS-SA-2026-3473)

According to the versions of the shim packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext acro...