Security Bulletin: PowerKVM is affected by a kexec-tools vulnerability (CVE-2015-0267)

Summary PowerKVM is affected by a kexec-tools vulnerability CVE-2015-0267. Vulnerability Details CVEID: CVE-2015-0267 DESCRIPTION: kexec-tools could allow a local attacker to launch a symlink attack. The script module-setup.sh creates temporary files insecurely. A local attacker could exploit thi...

openSUSE Security Update : the Linux Kernel (openSUSE-2018-515) (Spectre)

The openSUSE Leap 15.0 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3639: Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are...

kernel security and bug fix update

2.6.32-696.30.1.OL6 - Update genkey bug 25599697 2.6.32-696.30.1 - x86 x86/kvm: fix CPUID7EDX word 18 mask Jan Stancek 1566893 1566899 CVE-2018-3639 2.6.32-696.29.1 - x86 x86/specctrl: Fix late microcode problem with AMD Waiman Long 1566893 1566899 CVE-2018-3639 - x86 x86/specctrl: Clean up entry...

kernel security, bug fix, and enhancement update

3.10.0-862.2.3.OL7 - Oracle Linux certificates Alexey Petrenko - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey bug 24817676 3.10.0-862.2.3 - x86 kvm: fix icebp instruction handling Paolo Bonzini 1566849 1566845...

USN-3405-2: Linux kernel (Xenial HWE) vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 14.04 Description USN-3405-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.0...

DEBIAN-CVE-2015-7837

The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secureboot flag across kexec reboot...

CVE-2015-7837

CVE-2015-7837 affects the Linux kernel as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2. The issue is a security restriction bypass caused by improper handling of the secure_boot flag across a kexec reboot, allowing local users to bypass securelevel/secureboot restrictions. ...

CVE-2015-7837

The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secureboot flag across kexec reboot...

CVE-2015-7837

The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secureboot flag across kexec reboot...

Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3405-2)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3405-2 advisory. USN-3405-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enableme...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3405-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3405-1 advisory. It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use...

Ubuntu: Security Advisory (USN-3405-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2017 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-3405-1: Linux kernel vulnerabilities

It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2017-11176 Huang Weller discovered that the ext4 filesyste...

USN-3405-1 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2017-11176 Huang Weller discovered that the ext4 filesyste...

OracleVM 3.4 : xen (OVMSA-2017-0116)

The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: xen commit=74b662e79bc874fe8ad8a93d2891e6569c380004 - BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff - BUILDINFO: QEMU traditional...

How to Generate a Crashdump from an Unresponsive XenServer 7

This article describes how to generate a crashdump from an unresponsive XenServer 7. If XenServer crashes, the running kernel can migrate into a special memory area which is based on kexec functions that loads a special kernel without the need for a server cold restart. This new kernel attempts t...

openSUSE Security Update : kdump (openSUSE-2016-1215)

This update for kdump provides several fixes and enhancements : - Refresh kdumprd if /etc/hosts or /etc/nsswitch.conf is changed. bsc943214 - Add a separate systemd service to rebuild kdumprd at boot. bsc943214 - Improve network setup in the kdump environment by reading configuration from wicked ...

kernel: securelevel disabled after kexec

A flaw was found in the way the Linux kernel handled the securelevel functionality after performing a kexec operation. A local attacker could use this flaw to bypass the security mechanism of the securelevel/secureboot combination...

Important: Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

Updated kernel-rt packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, whic...

UBUNTU-CVE-2015-7837

The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secureboot flag across kexec reboot...