SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:0909-1) (Meltdown) (Spectre)

This update for xen fixes the following issues: Update to Xen 4.7.5 bug fix only release bsc1027519 Security issues fixed : - CVE-2018-7540: Fixed DoS via non-preemptable L3/L4 pagetable freeing XSA-252 bsc1080635 - CVE-2018-7541: A grant table v2 - v1 transition may crash Xen XSA-255 bsc1080662 ...

SUSE-SU-2018:0909-1 Security update for xen

This update for xen fixes the following issues: Update to Xen 4.7.5 bug fix only release bsc1027519 Security issues fixed: - CVE-2018-7540: Fixed DoS via non-preemptable L3/L4 pagetable freeing XSA-252 bsc1080635 - CVE-2018-7541: A grant table v2 - v1 transition may crash Xen XSA-255 bsc1080662 -...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4022)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4022 advisory. - x86: Add another set of MSR accessor functions Borislav Petkov Orabug: 27444923 CVE-2017-5753 - userns: prevent speculative execution Elena...

Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2018-4020)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4020 advisory. - x86: Use PREDCMD MSR when ibpb is enabled Konrad Rzeszutek Wilk Orabug: 27369777 CVE-2017-5715 CVE-2017-5753 - x86/spec: Dont print the Missing...

SUSE SLES12 Security Update : qemu (SUSE-SU-2018:0056-1) (Spectre)

This update for qemu fixes the following issues: A mitigation for a security flaw has been applied : - CVE-2017-5715: QEMU was updated to allow passing through new MSR and CPUID flags from the host VM to the CPU, to allow enabling/disabling branch prediction features in the Intel CPU. bsc1068032...

SUSE SLES11 Security Update : kvm (SUSE-SU-2018:0039-1) (Spectre)

This update for kvm fixes the following issues: A security flaw mitigation has been applied : - CVE-2017-5715: QEMU was updated to allow passing through new MSR and CPUID flags from the host VM to the CPU, to allow enabling/disabling branch prediction features in the Intel CPU. bsc1068032 Also a...

CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

Design/Logic Flaw

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

ALPINE-CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

CVE-2018-5244

CVE-2018-5244 affects Xen 4.10, where MSR emulation overhaul leaves one tracking structure not freed when a vCPU is destroyed. This can enable a local attacker (guest OS administrator) to trigger a host‑memory denial of service by rebooting the guest multiple times. The entry documents a host‑mem...

CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

CVE-2018-5244

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service host OS memory consumption by rebooting many...

x86: memory leak with MSR emulation

ISSUE DESCRIPTION In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. IMPACT A memory allocation of 8 bytes is leaked each time a vcpu is destroyed. A malicious...

SUSE SLES11 Security Update : kvm (SUSE-SU-2018:0019-1) (Spectre)

This update for kvm fixes the following issues: Also a mitigation for a security flaw has been applied : - CVE-2017-5715: QEMU was updated to allow passing through new MSR and CPUID flags from the host VM to the CPU, to allow enabling/disabling branch prediction features in the Intel CPU...

SUSE SLED12 / SLES12 Security Update : ucode-intel (SUSE-SU-2018:0006-1) (Spectre)

This update for ucode-intel fixes the following issues: The CPU microcode for Haswell-X, Skylake-X and Broadwell-X chipsets was updated to report both branch prediction control via CPUID flag and ability to control branch prediction via an MSR register. This update is part of a mitigation for a...

Google Android - Unprotected MSRs in EL1 RKP Privilege Escalation Exploit

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=980 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS...

DEBIAN-CVE-2016-4440

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...