Sebastian Österlund

**Nome do software vulnerável e versões afetadas** Processadores Intel(R) (versões afetadas não especificadas) **Descrição** O problema está relacionado a erros de limpeza em alguns processadores Intel(R), o que pode permitir que um usuário autenticado potencialmente cause a divulgação de informações por meio de acesso local. Isso está relacionado a um vazamento no buffer de armazenamento dos resultados da leitura de registros vetoriais, que são modificados durante a execução de instruções vetoriais. Um invasor poderia explorar isso para divulgar informações protegidas. **Recomendações** No momento, não há informações sobre uma versão mais recente que contenha uma correção para essa vulnerabilidade.

**Nome do software vulnerável e versões afetadas** Processadores Intel(R) (versões afetadas não especificadas) **Descrição** O problema está relacionado a erros de limpeza em algumas evacuações do cache de dados em determinados processadores Intel(R), o que pode permitir que um usuário autenticado potencialmente provoque a divulgação de informações por meio de acesso local. Isso é causado por um vazamento de dados do cache L1D. A vulnerabilidade pode ser explorada para divulgar informações protegidas. Pesquisadores descobriram uma nova vulnerabilidade de execução especulativa em CPUs Intel que poderia permitir que invasores vazassem dados confidenciais específicos do kernel do sistema operacional, de máquinas virtuais co-residentes e até mesmo do enclave SGX protegido da Intel. **Recomendações** No momento, não há informações sobre uma versão mais recente que contenha uma correção para essa vulnerabilidade.

**Name of the Vulnerable Software and Affected Versions** Intel microprocessors (affected versions not specified) vCenter Server (affected versions not specified) ESXi (affected versions not specified) Workstation (affected versions not specified) Fusion (affected versions not specified) **Description** The issue is related to Microarchitectural Data Sampling Uncacheable Memory (MDSUM) on some microprocessors that utilize speculative execution. This may allow an authenticated user with local access to potentially enable information disclosure via a side channel. An attacker with local access to a targeted system may exploit this issue to obtain data on the targeted system, causing some information leakage. **Recommendations** For Intel microprocessors, apply the microcode updates as guided by Intel. For vCenter Server, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For ESXi, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Workstation, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Fusion, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities.

**Name of the Vulnerable Software and Affected Versions** Intel microprocessors (affected versions not specified) vCenter Server (affected versions not specified) ESXi (affected versions not specified) Workstation (affected versions not specified) Fusion (affected versions not specified) Huawei VRP (affected versions not specified) **Description** The issue is related to Microarchitectural Load Port Data Sampling (MLPDS), which may allow an authenticated user to potentially enable information disclosure via a side channel with local access. This is due to the incorrect implementation of saving outdated operation results in the load port table. The exploitation of this issue can allow an attacker to access confidential information. **Recommendations** For Intel microprocessors, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For vCenter Server, apply Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For ESXi, apply Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Workstation, apply Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Fusion, apply Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Huawei VRP, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Intel Microprocessors (affected versions not specified) vCenter Server (affected versions not specified) ESXi (affected versions not specified) Workstation (affected versions not specified) Fusion (affected versions not specified) **Description** The issue is related to Microarchitectural Fill Buffer Data Sampling (MFBDS), which may allow an authenticated user to potentially enable information disclosure via a side channel with local access. This is due to the speculative execution utilized by some microprocessors. **Recommendations** For Intel Microprocessors, consider applying the microcode updates as guided by Intel to mitigate the risk. For vCenter Server, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For ESXi, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Workstation, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities. For Fusion, update to a version that includes Hypervisor-Specific Mitigations for MDS speculative execution vulnerabilities.