CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2020-5956
https://notcve.org/view.php?id=CVE-2020-5956
An issue was discovered in SdLegacySmm in Insyde InsydeH2O with kernel 5.1 before 05.15.11, 5.2 before 05.25.11, 5.3 before 05.34.11, and 5.4 before 05.42.11. The software SMI handler allows untrusted external input because it does not verify CommBuffer. Se ha detectado un problema en SdLegacySmm en InsydeH2O con el kernel 5.1 anteriores a 05.15.11, 5.2 anteriores a 05.25.11, 5.3 anteriores a 05.34.11 y 5.4 anteriores a 05.42.11. El manejador SMI de software permite una entrada externa no confiable porque no verifica el CommBuffer. • https://security.netapp.com/advisory/ntap-20220223-0001 https://www.insyde.com/security-pledge • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 39EXPL: 0CVE-2021-33626
https://notcve.org/view.php?id=CVE-2021-33626
A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution. Existe una vulnerabilidad en la rama SMM (System Management Mode) que registra un manejador SWSMI que no comprueba o valida suficientemente el puntero del buffer asignado (valores QWORD para CommBuffer). Esto puede ser utilizado por un atacante para corromper los datos en la memoria SMRAM e incluso llevar a la ejecución de código arbitrario • https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf https://security.netapp.com/advisory/ntap-20220216-0006 https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2021001 • CWE-829: Inclusion of Functionality from Untrusted Control Sphere •
CVSS: 7.2EPSS: 0%CPEs: 39EXPL: 0CVE-2020-27339
https://notcve.org/view.php?id=CVE-2020-27339
In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5). En el kernel de Insyde InsydeH2O 5.x, algunos controladores SMM no validaban correctamente los parámetros CommBuffer y CommBufferSize, lo que permitía a los llamantes corromper el firmware o la memoria del sistema operativo. Las versiones corregidas para este problema en los controladores AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe y SdMcDeviceDxe son 05.16.25, 05.26.25, 05.35.25, 05.43.25 y 05.51.25 (para los núcleos 5.1 a 5.5) • https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf https://security.netapp.com/advisory/ntap-20220216-0005 https://www.insyde.com/security-pledge/SA-2021001 • CWE-20: Improper Input Validation •