Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3776-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3776-1 advisory. Jann Horn discovered that the vmacache subsystem did not properly handle sequence number overflows, leading to a use-after-free vulnerability. A local...

Ubuntu: Security Advisory (USN-3776-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-3777-1: Linux kernel vulnerabilities

Jann Horn discovered that the vmacache subsystem did not properly handle sequence number overflows, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or execute arbitrary code. CVE-2018-17182 It was discovered that the...

USN-3775-2: Linux kernel (Trusty HWE) vulnerabilities

USN-3775-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. It was discovered that the paravirtualization implementation in the Linux kernel did n...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Intel Microcode vulnerabilities (USN-3756-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3756-1 advisory. 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...

USN-3756-1: Intel Microcode vulnerabilities

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 in a guest virtual machine could use this to expose sensitive...

USN-3690-1: AMD Microcode update | Cloud Foundry

Severity High Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 14.04 Description Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker...

USN-3690-2: AMD Microcode regression | Cloud Foundry

Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 14.04 Description USN-3690-1 provided updated microcode for AMD processors to address CVE-2017-5715 aka Spectre. Unfortunately, the update caused some systems to fail to boot. This update reverts the update for Ubuntu 14.04 LTS. We...

USN-3690-2: AMD Microcode regression

USN-3690-1 provided updated microcode for AMD processors to address CVE-2017-5715 aka Spectre. Unfortunately, the update caused some systems to fail to boot. This update reverts the update for Ubuntu 14.04 LTS. We apologize for the inconvenience. Original advisory details: Jann Horn discovered th...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : AMD Microcode update (USN-3690-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3690-1 advisory. Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via...

Ubuntu: Security Advisory (USN-3690-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-3690-1: AMD Microcode update

Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. This update provide...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : QEMU update (USN-3679-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3679-1 advisory. Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : libvirt vulnerability and update (USN-3680-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3680-1 advisory. Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allo...

Ubuntu: Security Advisory (USN-3680-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu: Security Advisory (USN-3679-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-3680-1: libvirt vulnerability and update

Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update...

USN-3679-1: QEMU update

Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update...

USN-3679-1 qemu update

Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update...

Ubuntu 18.04 LTS : Linux kernel vulnerability (USN-3652-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3652-1 advisory. Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel...