USN-2978-1: Linux kernel vulnerabilities

David Matlack discovered that the Kernel-based Virtual Machine KVM implementation in the Linux kernel did not properly restrict variable Memory Type Range Registers MTRR in KVM guests. A privileged user in a guest VM could use this to cause a denial of service system crash in the host, expose...

Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2889-2)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2889-2 advisory. It was discovered that a use-after-free vulnerability existed in the AFUNIX implementation in the Linux kernel. A local attacker could use crafted epollc...

Ubuntu 12.04 LTS : linux vulnerabilities (USN-2886-1)

It was discovered that a use-after-free vulnerability existed in the AFUNIX implementation in the Linux kernel. A local attacker could use crafted epollctl calls to cause a denial of service system crash or expose sensitive information. CVE-2013-7446 It was discovered that the KVM implementation ...

Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2887-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2887-1 advisory. It was discovered that a use-after-free vulnerability existed in the AFUNIX implementation in the Linux kernel. A local attacker could use crafted epollc...

Important: Red Hat Security Advisory: kernel security and bug fix update

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.5 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which gi...

Oracle Linux 6 : kernel (ELSA-2012-0571)

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-0571 advisory. - virt VMX: vmxsetcr0 expects kvm-srcu locked Marcelo Tosatti 808206 807507 CVE-2012-1601 - virt KVM: Ensure all vcpus are consistent with in-kernel...

CVE-2012-1601

The KVM implementation in the Linux kernel before 3.3.6 allows host OS users to cause a denial of service NULL pointer dereference and host OS crash by making a KVMCREATEIRQCHIP ioctl call after a virtual CPU already exists...

CVE-2012-0045

The emsyscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 aka syscall opcode, which allows guest OS users to cause a denial of service guest OS crash via a crafted application, as demonstrated by an NASM file...