CVE-2016-3713

The msrmtrrvalid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvmarchvcpu data structure, and consequently obtain sensitive information or cause a denial of service system crash, via a crafted ioctl call...

Code injection

arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of service host OS crash or possibly execute arbitrary code on the host OS, via x2APIC mode...

CVE-2016-3713

CVE-2016-3713 affects the Linux kernel up to version 4.6.0 (fixed in 4.6.1). The vulnerability lies in msr_mtrr_valid() in arch/x86/kvm/mtrr.c, which incorrectly supports MSR 0x2f8 and allows a guest OS user to read or write the kvm_arch_vcpu data structure. Impact includes potential information ...

CVE-2016-3713

The msrmtrrvalid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvmarchvcpu data structure, and consequently obtain sensitive information or cause a denial of service system crash, via a crafted ioctl call...

RHEL 7 : kernel (RHSA-2016:1277)

An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

CVE-2016-3713

The msrmtrrvalid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvmarchvcpu data structure, and consequently obtain sensitive information or cause a denial of service system crash, via a crafted ioctl call...

UBUNTU-CVE-2016-3136

The mctu232msrtostate function in drivers/usb/serial/mctu232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service NULL pointer dereference and system crash via a crafted USB device without two interrupt-in endpoint descriptors...

CVE-2015-8844

The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service TM Bad Thing exception and panic via a crafted application...

CVE-2015-8844

The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service TM Bad Thing exception and panic via a crafted application...

CVE-2015-8844

The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service TM Bad Thing exception and panic via a crafted application...

CVE-2015-8844

CVE-2015-8844 affects the Linux kernel on PowerPC where the signal implementation does not validate an MSR with both the S and T bits set. This can enable a local attacker to cause a denial of service (TM Bad Thing exception and panic) via a crafted application. The vulnerability is fixed in the ...

Linux Kernel (x86) - Memory Sinkhole Privilege Escalation

Linux Kernel x86 - Memory Sinkhole Privilege Escalation ; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is...

Linux/x86 Memory Sinkhole Proof Of Concept

; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determined by which register will be read out of the APIC ; fo...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3053)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-3053 advisory. - KVM: x86: SYSENTER emulation is broken Nadav Amit Orabug: 21502739 CVE-2015-0239 CVE-2015-0239 - fs: take imutex during preparebinprm for setugid...

kernel: kvm: insufficient sysenter emulation when invoked from 16-bit code

It was found that the Linux kernel KVM subsystem's sysenter instruction emulation was not sufficient. An unprivileged guest user could use this flaw to escalate their privileges by tricking the hypervisor to emulate a SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the...

VENOM venom vulnerability analysis qemu kvm CVE‐2 0 1 5‐3 4 5 6-the vulnerability warning-the black bar safety net

Vulnerability description CrowdStrike, Jason Geffner found open source computer emulator QEMU in the presence of a and a virtual floppy disk controller associated with the security vulnerability, code-named VENOM, the CVE number for CVE-2 0 1 5-3 4 5 6 The. Using this vulnerability an attacker ca...

Oracle Linux 5 : kvm (ELSA-2015-0869)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-0869 advisory. - Resolves: bz1152982 CVE-2014-3610 kernel: kvm: noncanonical MSR writes rhel-5.11.z Tenable has extracted the preceding description block directly fro...

kernel: kvm: noncanonical MSR writes

It was found that KVM's Write to Model Specific Register WRMSR instruction emulation would write non-canonical values passed in by the guest to certain MSRs in the host's context. A privileged guest user could use this flaw to crash the host...

kvm security update

kvm-83-270.0.1.el511 - Added kvm-add-oracle-workaround-for-libvirt-bug.patch - Added kvm-Introduce-oel-machine-type.patch kvm-83-270.el5 - KVM: x86: Check non canonical addresses upon WRMSR - Resolves: bz1152982 CVE-2014-3610 kernel: kvm: noncanonical MSR writes rhel-5.11.z kvm-83-269.el5 - KVM:...

Code injection

The OLE Point of Sale OPOS drivers before 1.13.003 on HP Point of Sale Windows PCs allow remote attackers to execute arbitrary code via vectors involving OPOSToneIndicator.ocx for POS keyboards and POS keyboards with MSR, aka ZDI-CAN-2510...