arm: a CPU may speculate past the ERET instruction

ISSUE DESCRIPTION Some CPUs can speculate past an ERET instruction and potentially perform speculative accesses to memory before processing the exception return. Since the register state is often controlled by lower privilege level i.e guest kernel/userspace at the point of the ERET, this could...

SUSE SLES12 Security Update : xen (SUSE-SU-2019:3297-1)

This update for xen fixes the following issues : CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm bsc1158003 XSA-307. CVE-2019-19582: Fixed a potential infinite loop when x86 accesses to bitmaps with a compile time known size of 64 bsc1158003 XSA-307. CVE-2019-19583: Fixed improper...

Device quarantine for alternate pci assignment methods

ISSUE DESCRIPTION XSA-302 relies on the use of libxl's "assignable-add" feature to prepare devices to be assigned to untrusted guests. Unfortunately, this is not considered a strictly required step for device assignment. The PCI passthrough documentation on the wiki describes alternate ways of...

VMware Workstation and VMware Fusion Information Disclosure Vulnerability

VMware Workstation is a desktop virtual computing software from VMware with Windows and Linux versions. VMware Fusion is a virtual machine hypervisor developed by VMware for Macintosh computers. An information disclosure vulnerability exists in VMware Workstation version 15.x prior to 15.5.1 and...

CVE-2019-5540

VMware Workstation 15.x before 15.5.1 and Fusion 11.x before 11.5.1 contain an information disclosure vulnerability in vmnetdhcp. Successful exploitation of this issue may allow an attacker on a guest VM to disclose sensitive information by leaking memory from the host process...

Fedora 29 : xen (2019-865bb16900)

VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298, CVE-2019-18425 Issues with restartable PV type change operations XSA-299, CVE-2019-18421 1767726 add-to-physmap can be abused to DoS Arm hosts XSA-301, CVE-2019-18423 passed through P...

ALPINE-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

DEBIAN-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

UBUNTU-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

passed through PCI devices may corrupt host memory after deassignment

ISSUE DESCRIPTION When a PCI device is assigned to an untrusted domain, it is possible for that domain to program the device to DMA to an arbitrary address. The IOMMU is used to protect the host from malicious DMA by making sure that the device addresses can only target memory assigned to the...

CVE-2017-6414

Memory leak in the vcardapdunew function in card7816.c in libcacard before 2.5.3 allows local guest OS users to cause a denial of service host memory consumption via vectors related to allocating a new APDU object...

CVE-2016-5337

The megasasctrlgetinfo function in hw/scsi/megasas.c in QEMU allows local guest OS administrators to obtain sensitive host memory information via vectors related to reading device control information...

Denial Of Service (DoS)

Linux kernel is vulnerable to denial of service DoS attacks. This occurs while emulating VMXON instruction in 'handlevmon' improperly. An L1 guest user could use this flaw to leak host memory potentially resulting in a system crash...

DEBIAN-CVE-2019-3812

QEMU, through version 2.10 and through version 3.1.0, is vulnerable to an out-of-bounds read of up to 128 bytes in the hw/i2c/i2c-ddc.c:i2cddc function. A local attacker with permission to execute i2c commands could exploit this to read stack memory of the qemu process on the host...

PT-2019-4607 · Qemu +3 · Qemu +3

Name of the Vulnerable Software and Affected Versions: QEMU versions 2.10 through 3.1.0 Description: The issue is related to an out-of-bounds read of up to 128 bytes in the i2c ddc function, located in the hw/i2c/i2c-ddc.c file. A local attacker with permission to execute i2c commands could explo...

spice security update

0.14.0-6.0.2.1 - Add ARM support 0.14.0-6.1 - Fix off-by-one error during guest-to-host memory address conversion Resolves: CVE-2019-3813...

USN-3872-1 linux-hwe vulnerabilities

It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information host machine kernel memory. CVE-2018-14625 Cfir...

Denial Of Service (DoS)

qemu-kvm-rhev is vulnerable to denial of service DoS attacks. The vulnerability exists as a memory leak in hw/watchdog/wdti6300esb.c in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service host memory consumption and QEMU process crash via a large number of...

VMware ESXi, Workstation and Fusion Uninitialized Stack Memory Usage Vulnerability (CNVD-2018-22943)

VMware ESXi, Workstation, and Fusion are all products of VMware, Inc. VMware ESXi is a server virtualization platform that can be installed directly on physical servers; VMware Workstation is a suite of virtual machine software; and Fusion is a suite of virtual machine software that is designed t...

Debian DSA-4279-1 : linux - security update (Foreshadow)

Multiple researchers have discovered a vulnerability in the way the Intel processor designs have implemented speculative execution of instructions in combination with handling of page-faults. This flaw could allow an attacker controlling an unprivileged process to read memory from arbitrary...