Herbert Bos

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A cross-privilege Spectre v2 vulnerability allows attackers to bypass all deployed mitigations, including the recent Fine(IBT), and to leak arbitrary Linux kernel memory on Intel systems. This issue is related to a new variant of the Spectre v2 attack, called Native Branch History Injection (BHI), which can be used to leak arbitrary kernel memory at 3.5 kB/sec. The vulnerability can be exploited by an unauthenticated attacker to leak privileged memory, bypassing existing Spectre mitigation techniques. **Recommendations** As a temporary workaround, consider disabling the `eBPF` functionality to minimize the risk of exploitation. Restrict access to the vulnerable `InSpectre Gadget` tool to prevent attackers from finding gadgets in the kernel. Apply the recommendations provided by Intel, including disabling non-privileged `eBPF` functionality, enabling enhanced speculation with indirect branch tracking (eIBRS), and enabling supervisor mode execution protection (SMEP). Add `LFENCE` instructions to specific places in the code to serve as serialization points and implement software sequences that clear the branch history buffer (BHB) for transitions between different security domains. 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** Linux kernel (affected versions not specified) **Description** The issue is related to the `vt ioctl` function, specifically the `vt setactivate` call, where the `array index nospec` mechanism fails to properly sanitize an out-of-bounds value, leading to a transient integer underflow. The `vsa.console` value should be decreased first and then sanitized with `array index nospec` to prevent this issue. **Recommendations** 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(R) Processors (affected versions not specified) Intel(R) Brand Verification Tool versions prior to 11.0.0.1225 Description: The issue concerns an observable response discrepancy in floating-point operations for some Intel(R) Processors, which may allow an authorized user to potentially enable information disclosure via local access. Additionally, improper permissions in the installer for the Intel(R) Brand Verification Tool may allow an authenticated user to potentially enable escalation of privilege via local access. Recommendations: For Intel(R) Processors, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For Intel(R) Brand Verification Tool versions prior to 11.0.0.1225, update to version 11.0.0.1225 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** All supported CPU products (affected versions not specified) **Description** The issue concerns potential floating point value injection in CPU products, which, when combined with software vulnerabilities related to speculative execution, can lead to the use of incorrect floating point results. This may cause data leakage due to the incorrect use of data from FPVI. **Recommendations** 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(R) Processors (affected versions not specified) Xen (affected versions not specified) **Description** The issue is related to an observable response discrepancy that may allow an authorized user to potentially enable information disclosure via local access. This discrepancy can be exploited to gain access to confidential data. **Recommendations** For Intel(R) Processors, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For Xen, 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** Xen (affected versions not specified) CPU products (affected versions not specified) **Description** The issue is related to a potential speculative code store bypass in CPU products, which, in conjunction with software vulnerabilities related to speculative execution of overwritten instructions, may cause incorrect speculation and could result in data leakage. Additionally, there is a vulnerability in the Xen hypervisor related to insufficient access control to ports, which could allow an attacker to access confidential data. **Recommendations** For Xen, restrict access to sensitive ports to minimize the risk of exploitation. For CPU products, consider disabling speculative execution of overwritten instructions as a temporary workaround until a patch is available. 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** Firefox ESR versions prior to 78.9 Firefox versions prior to 87 **Description** The issue is related to insufficient neutralization of special elements in a request, which may allow a remote attacker to access confidential data. It is also described as a transient execution vulnerability, specifically Floating Point Value Injection (FPVI), allowing an attacker to leak arbitrary memory addresses and potentially enabling JIT type confusion attacks. **Recommendations** For Firefox ESR versions prior to 78.9, update to version 78.9 or later. For Firefox versions prior to 87, update to version 87 or later.

**Name of the Vulnerable Software and Affected Versions** Intel(R) Processors (affected versions not specified) **Description** The issue is related to cleanup errors in some data cache evictions for some Intel(R) Processors, which may allow an authenticated user to potentially enable information disclosure via local access. This is caused by a data leak from the L1D cache. The vulnerability can be exploited to disclose protected information. Researchers have found a new speculative execution vulnerability in Intel CPUs that could let attackers leak targeted sensitive data from the OS kernel, co-resident virtual machines, and even from Intel's secured SGX enclave. **Recommendations** 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(R) Processors (affected versions not specified) **Description** The issue is related to cleanup errors in some Intel(R) processors, which may allow an authenticated user to potentially enable information disclosure via local access. This is connected to a leak in the store buffer of results from reading vector registers, which are modified during the execution of vector instructions. An attacker could exploit this to disclose protected information. **Recommendations** 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 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.

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned. Description: A hardware vulnerability in GPU memory modules enables attackers to accelerate micro-architectural attacks through the use of the JavaScript WebGL API. Recommendations: 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** Android versions prior to 2016-11-05 **Description** An issue in the kernel ION subsystem could allow a local malicious application to execute arbitrary code within the context of the kernel, potentially leading to a local permanent device compromise. This may require reflashing the operating system to repair the device. **Recommendations** For versions prior to 2016-11-05, update the Android operating system to a version released on or after 2016-11-05 to resolve the issue.