x86: Nested VT-x usable even when disabled

ISSUE DESCRIPTION When running HVM guests, virtual extensions are enabled in hardware because Xen is using them. As a result, a guest can blindly execute the virtualisation instructions, and will exit to Xen for processing. In the case that the guest hasn't followed the correct virtual...

SUSE-SU-2018:3332-1 Security update for xen

This update for xen fixes the following issues: - CVE-2018-17963: qemudeliverpacketiov accepted packet sizes greater than INTMAX, which allows attackers to cause a denial of service or possibly have unspecified other impact. bsc1111014 - CVE-2018-15468: The DEBUGCTL MSR contains several debugging...

SUSE SLES12 Security Update : libvirt (SUSE-SU-2018:2631-2) (Spectre)

This update for libvirt fixes the following issues : This new feature was added : bsc1094325, bsc1094725: libxl: Enable virsh blockresize for XEN guests This security issue was fixed: CVE-2017-5715: Additional fixes for the Spectre patches bsc1079869 The update package also includes non-security...

Debian DLA-1531-1 : linux-4.9 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2018-6554 A memory leak in the irdabind function in the irda subsystem was discovered. A local user can take advantage of this flaw to cause a deni...

[SECURITY] [DLA 1531-1] linux-4.9 security update

Package : linux-4.9 Version : 4.9.110-3+deb9u5deb8u1 CVE ID : CVE-2018-6554 CVE-2018-6555 CVE-2018-7755 CVE-2018-9363 CVE-2018-9516 CVE-2018-10902 CVE-2018-10938 CVE-2018-13099 CVE-2018-14609 CVE-2018-14617 CVE-2018-14633 CVE-2018-14678 CVE-2018-14734 CVE-2018-15572 CVE-2018-15594 CVE-2018-16276...

SUSE SLES12 Security Update : libvirt (SUSE-SU-2018:2631-1) (Spectre)

This update for libvirt fixes the following issues : This new feature was added : bsc1094325, bsc1094725: libxl: Enable virsh blockresize for XEN guests This security issue was fixed: CVE-2017-5715: Additional fixes for the Spectre patches bsc1079869 The update package also includes non-security...

SUSE-SU-2018:2631-1 Security update for libvirt

This update for libvirt fixes the following issues: This new feature was added: - bsc1094325, bsc1094725: libxl: Enable virsh blockresize for XEN guests This security issue was fixed: - CVE-2017-5715: Additional fixes for the Spectre patches bsc1079869 These non-security issues were fixed: -...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4208)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4208 advisory. - Cipso: cipsov4optptr enter infinite loop yujuan.qi Orabug: 28563992 CVE-2018-10938 - x86/paravirt: Fix spectre-v2 mitigations for paravirt guests...

CVE-2018-15594

arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests...

CVE-2018-15594

arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests...

CVE-2018-15594

arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests...

CVE-2018-15594: Exposure of Sensitive Information to an Unauthorized Actor

arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests...

Xen xen-netback xenvif_set_hash_mapping Integer Overflow Exploit

Exploit for multiple platform in category dos / poc Xen: integer overflow in xen-netback xenvifsethashmapping The xen-netback linux kernel module is the default backend for Xen's virtual network devices. Since commit 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 the backend supports an additional...

DEBIAN-CVE-2018-15469

An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG...

USN-3740-1 linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities

It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault L1TF. A local attacker in a guest virtual machine could use this to expose sensitive...

Kernel: hw: cpu: L1 terminal fault (L1TF)

Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of...

Security update for libvirt (moderate)

This update for libvirt fixes the following issues: Security issue fixed: - CVE-2018-3639: Add support for 'ssbd' and 'virt-ssbd' CPUID feature bits to address V4 Speculative Store Bypass aka "Memory Disambiguation" bsc1092885. Bug fixes: - bsc1094325: Enable virsh blockresize for XEN guests...

openSUSE Security Update : libvirt (openSUSE-2018-860) (Spectre)

This update for libvirt fixes the following issues : Security issue fixed : - CVE-2018-3639: Add support for 'ssbd' and 'virt-ssbd' CPUID feature bits to address V4 Speculative Store Bypass aka 'Memory Disambiguation' bsc1092885. Bug fixes : - bsc1094325: Enable virsh blockresize for XEN guests...

SUSE SLED12 / SLES12 Security Update : libvirt (SUSE-SU-2018:2304-1) (Spectre)

This update for libvirt fixes the following issues: Security issue fixed : - CVE-2018-3639: Add support for 'ssbd' and 'virt-ssbd' CPUID feature bits to address V4 Speculative Store Bypass aka 'Memory Disambiguation' bsc1092885. Bug fixes : - bsc1094325: Enable virsh blockresize for XEN guests...

PT-2018-12754

Name of the Vulnerable Software and Affected Versions Subrion version 4.2.1 Description The issue allows user groups without access to the Admin panel to access it, although they cannot perform actions, if the Guests user group has access to the Admin panel. This is due to improper access control...