Ubuntu Security Notice 3823-1 - It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
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Apple Security Advisory 2018-10-30-9 - macOS Mojave 10.14 addresses buffer overflow, code execution, denial of service, and information leakage vulnerabilities.
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Apple Security Advisory 2018-10-30-2 - macOS Mojave 10.14.1, Security Update 2018-001 High Sierra, and Security Update 2018-005 Sierra are now available and address buffer overflow, code execution, denial of service, and information leakage vulnerabilities.
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Gentoo Linux Security Advisory 201810-6 - Multiple vulnerabilities have been found in Xen, the worst of which could cause a Denial of Service condition. Versions less than 4.10.1-r2 are affected.
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It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault (L1TF). A local attacker could use this to expose sensitive information (memory from the kernel or other processes). It was discovered that the paravirtualization implementation in the Linux kernel did not properly handle some indirect calls, reducing the effectiveness of Spectre v2 mitigations for paravirtual guests. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
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Red Hat Security Advisory 2018-2602-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include memory vulnerabilities.
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Red Hat Security Advisory 2018-2603-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include memory vulnerabilities.
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Ubuntu Security Notice 3756-1 - It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.
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Ubuntu Security Notice 3742-3 - USN-3742-2 introduced mitigations in the Linux Hardware Enablement kernel for Ubuntu 12.04 ESM to address L1 Terminal Fault vulnerabilities. Unfortunately, the update introduced regressions that caused kernel panics when booting in some environments as well as preventing Java applications from starting. This update fixes the problems. Various other issues were also addressed.
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Debian Linux Security Advisory 4279-1 - Multiple researchers have discovered a vulnerability in the way the Intel processor designs have implemented speculative execution of instructions in combination with handling of page-faults. This flaw could allow an attacker controlling an unprivileged process to read memory from arbitrary (non-user controlled) addresses, including from the kernel and all other processes running on the system or cross guest/host boundaries to read host memory.
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Ubuntu Security Notice 3741-3 - USN-3741-1 introduced mitigations in the Linux kernel for Ubuntu 14.04 LTS to address L1 Terminal Fault vulnerabilities. Unfortunately, the update introduced regressions that caused kernel panics when booting in some environments as well as preventing Java applications from starting. This update fixes the problems. Various other issues were also addressed.
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Debian Linux Security Advisory 4274-1 - This update provides mitigations for the "L1 Terminal Fault" vulnerability affecting a range of Intel CPUs.
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Red Hat Security Advisory 2018-2402-01 - The RHV-M Virtual Appliance automates the process of installing and configuring the Red Hat Virtualization Manager. The appliance is available to download as an OVA file from the Customer Portal. Issues addressed include a denial of service vulnerability.
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Red Hat Security Advisory 2018-2404-01 - The rhev-hypervisor7 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Issues addressed include an L1TF problem.
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Red Hat Security Advisory 2018-2403-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include a denial of service vulnerability.
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FreeBSD Security Advisory - On certain Intel 64-bit x86 systems there is a period of time during terminal fault handling where the CPU may use speculative execution to try to load data. The CPU may speculatively access the level 1 data cache (L1D). Data which would otherwise be protected may then be determined by using side channel methods. This issue affects bhyve on FreeBSD/amd64 systems. An attacker executing user code, or kernel code inside of a virtual machine, may be able to read secret data from the kernel or from another virtual machine.
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Ubuntu Security Notice 3742-2 - USN-3742-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 for Ubuntu 12.04 ESM. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. Various other issues were also addressed.
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Ubuntu Security Notice 3741-2 - USN-3741-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. Various other issues were also addressed.
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Ubuntu Security Notice 3742-1 - It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
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Ubuntu Security Notice 3741-1 - It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
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Ubuntu Security Notice 3740-2 - USN-3740-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. Various other issues were also addressed.
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Ubuntu Security Notice 3740-1 - It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker in a guest virtual machine could use this to expose sensitive information. It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
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Red Hat Security Advisory 2018-2391-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a speculative execution vulnerability.
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Red Hat Security Advisory 2018-2389-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a speculative execution vulnerability.
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Red Hat Security Advisory 2018-2395-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include bypass, denial of service, and use-after-free vulnerabilities.
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