CVE-2014-3646

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel through 3.17.2 does not have an exit handler for the INVVPID instruction, which allows guest OS users to cause a denial of service guest OS crash via a crafted application...

CVE-2014-3611

CVE-2014-3611 corresponds to a race condition in the Linux kernel’s KVM PIT emulation: the __kvm_migrate_pit_timer function in arch/x86/kvm/i8254.c, with affected versions up to and including 3.17.2. The vulnerability allows a guest OS user to trigger a host OS crash via incorrect PIT emulation. ...

CVE-2014-8481

CVE-2014-8481 affects the Linux kernel KVM arch/x86/kvm/emulate.c; the instruction decoder mishandles invalid instructions, allowing guest OS users to trigger a NULL pointer dereference and host crash via a crafted application that either fetches an invalid instruction or uses too many bytes. Roo...

CVE-2014-3647

CVE-2014-3647 affects the Linux kernel KVM emulation path: arch/x86/kvm/emulate.c. The root cause is improper handling of RIP changes during instruction emulation, enabling a local guest OS user to crash the guest (DoS) with a crafted application in kernels up to 3.17.2. The provided connected do...

CVE-2014-8481

The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 does not properly handle invalid instructions, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash via a crafted application that triggers 1 a...

CVE-2014-3646

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel through 3.17.2 does not have an exit handler for the INVVPID instruction, which allows guest OS users to cause a denial of service guest OS crash via a crafted application...

CVE-2014-8480

The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 lacks intended decoder-table flags for certain RIP-relative instructions, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash via a crafted...

CVE-2014-3610

The WRMSR processing functionality in the KVM subsystem in the Linux kernel through 3.17.2 does not properly handle the writing of a non-canonical address to a model-specific register, which allows guest OS users to cause a denial of service host OS crash by leveraging guest OS privileges, relate...

CVE-2014-3611

Race condition in the kvmmigratepittimer function in arch/x86/kvm/i8254.c in the KVM subsystem in the Linux kernel through 3.17.2 allows guest OS users to cause a denial of service host OS crash by leveraging incorrect PIT emulation...

CVE-2014-3645

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.12 does not have an exit handler for the INVEPT instruction, which allows guest OS users to cause a denial of service guest OS crash via a crafted application...

CVE-2014-3690

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service system disruption by...

CVE-2014-3645

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.12 does not have an exit handler for the INVEPT instruction, which allows guest OS users to cause a denial of service guest OS crash via a crafted application. A local unprivileged guest user could use this flaw to crash the gue...

F5 Networks BIG-IP : Linux kernel vulnerability (SOL15797)

The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service kernel OOPS by using the KVMSETSREGS ioctl to set the X86CR4OSXSAVE bit in the guest cr4 register, then calling the KVMRUN ioctl. C...

kernel: kvm: vmx: invept vm exit not handled

It was found that the Linux kernel's KVM subsystem did not handle the VM exits gracefully for the invept Invalidate Translations Derived from EPT instructions. On hosts with an Intel processor and invept VM exit support, an unprivileged guest user could use these instructions to crash the guest...

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

Updated kernel packages that fix several security issues and bugs 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, which give detailed severity ratings, are...

CVE-2014-3611

Race condition in the kvmmigratepittimer function in arch/x86/kvm/i8254.c in the KVM subsystem in the Linux kernel through 3.17.2 allows guest OS users to cause a denial of service host OS crash by leveraging incorrect PIT emulation. A local guest user with access to the PIT i/o ports could use...

CVE-2014-3610

The WRMSR processing functionality in the KVM subsystem in the Linux kernel through 3.17.2 does not properly handle the writing of a non-canonical address to a model-specific register, which allows guest OS users to cause a denial of service host OS crash by leveraging guest OS privileges, relate...

[USN-2359-1] Linux kernel vulnerabilities

========================================================================== Ubuntu Security Notice USN-2359-1 September 23, 2014 linux vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: -...

Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2358-1)

Jack Morgenstein reported a flaw in the page handling of the KVM Kerenl Virtual Machine subsystem in the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service host OS memory corruption or possibly have other unspecified impact on the host OS. CVE-2014-3601 Jason...

Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2359-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2359-1 advisory. Jack Morgenstein reported a flaw in the page handling of the KVM Kerenl Virtual Machine subsystem in the Linux kernel. A guest OS user could exploit this...