CVSS: 5.6EPSS: 0%CPEs: 463EXPL: 0CVE-2018-3620 – Kernel: hw: cpu: L1 terminal fault (L1TF)
https://notcve.org/view.php?id=CVE-2018-3620
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and a side-channel analysis. Los sistemas con microprocesadores que emplean la ejecución especulativa y traducciones de direcciones podría permitir la divulgación no autorizada de información que reside en la caché de datos L1 a un atacante con acceso de usuario local mediante un error de página del terminal y un análisis de canal lateral. Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. • http://support.lenovo.com/us/en/solutions/LEN-24163 http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en http://www.securityfocus.com/bid/105080 http://www.securitytracker.com/id/1041451 http://www.vmware.com/security/advisories/VMSA-2018-0021.html http://xenbits.xen.org/xsa/advisory-273.html https://access.redhat.com/errata/RHSA-2018:2384 https://access.redhat.com/errata/RHSA-2018:2387 https://access.redhat.com/errata/RHSA-2018:2388 https: • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •
CVSS: 5.6EPSS: 0%CPEs: 463EXPL: 0CVE-2018-3646 – Kernel: hw: cpu: L1 terminal fault (L1TF)
https://notcve.org/view.php?id=CVE-2018-3646
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis. Los sistemas con microprocesadores que emplean la ejecución especulativa y traducciones de direcciones podría permitir la divulgación no autorizada de información que reside en la caché de datos L1 a un atacante con acceso de usuario local con privilegios de invitado del sistema operativo mediante un error de página del terminal y un análisis de canal lateral. Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. • http://support.lenovo.com/us/en/solutions/LEN-24163 http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en http://www.securityfocus.com/bid/105080 http://www.securitytracker.com/id/1041451 http://www.securitytracker.com/id/1042004 http://www.vmware.com/security/advisories/VMSA-2018-0020.html http://xenbits.xen.org/xsa/advisory-273.html https://access.redhat.com/errata/RHSA-2018:2384 https://access.redhat.com/errata/RHSA-2018:2387 https://access • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.9EPSS: 0%CPEs: 1095EXPL: 0CVE-2018-3693 – Kernel: speculative bounds check bypass store
https://notcve.org/view.php?id=CVE-2018-3693
Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a speculative buffer overflow and side-channel analysis. Los sistemas con microprocesadores que emplean la ejecución especulativa y la predicción de ramas podría permitir la divulgación no autorizada de información a un atacante con acceso de usuario local mediante un desbordamiento de búfer especulativo y el análisis de canal lateral. An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions past bounds check. The flaw relies on the presence of a precisely-defined instruction sequence in the privileged code and the fact that memory writes occur to an address which depends on the untrusted value. Such writes cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). • https://access.redhat.com/errata/RHSA-2018:2384 https://access.redhat.com/errata/RHSA-2018:2390 https://access.redhat.com/errata/RHSA-2018:2395 https://access.redhat.com/errata/RHSA-2019:1946 https://access.redhat.com/errata/RHSA-2020:0174 https://cdrdv2.intel.com/v1/dl/getContent/685359 https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 https://security.netapp.com/advisory/ntap-20180823-0001 https://www.oracle.com/s • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.6EPSS: 0%CPEs: 481EXPL: 0CVE-2018-3665 – Kernel: FPU state information leakage via lazy FPU restore
https://notcve.org/view.php?id=CVE-2018-3665
System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel. El software de sistema que emplea la técnica de restauración de estado Lazy FP en los sistemas que emplean microprocesadores de Intel Core podrían permitir que un proceso local infiera datos de otro proceso mediante un canal lateral de ejecución especulativa. A Floating Point Unit (FPU) state information leakage flaw was found in the way the Linux kernel saved and restored the FPU state during task switch. Linux kernels that follow the "Lazy FPU Restore" scheme are vulnerable to the FPU state information leakage issue. An unprivileged local attacker could use this flaw to read FPU state bits by conducting targeted cache side-channel attacks, similar to the Meltdown vulnerability disclosed earlier this year. • http://www.securityfocus.com/bid/104460 http://www.securitytracker.com/id/1041124 http://www.securitytracker.com/id/1041125 https://access.redhat.com/errata/RHSA-2018:1852 https://access.redhat.com/errata/RHSA-2018:1944 https://access.redhat.com/errata/RHSA-2018:2164 https://access.redhat.com/errata/RHSA-2018:2165 https://access.redhat.com/errata/RHSA-2019:1170 https://access.redhat.com/errata/RHSA-2019:1190 https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.6EPSS: 0%CPEs: 1065EXPL: 1CVE-2018-9056
https://notcve.org/view.php?id=CVE-2018-9056
Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information to an attacker with local user access via a side-channel attack on the directional branch predictor, as demonstrated by a pattern history table (PHT), aka BranchScope. Los sistemas con microprocesadores que utilizan ejecución especulativa podrían permitir la revelación de información no autorizada a un atacante con acceso de usuario local mediante un ataque de canal lateral en el predictor de saltos direccional, como se ha demostrado por una tabla de historial de patrones (PHT), también conocido como BranchScope. • http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf https://arstechnica.com/gadgets/2018/03/its-not-just-spectre-researchers-reveal-more-branch-prediction-attacks • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •