AZL-35347 CVE-2022-0175 affecting package virglrenderer for versions less than 0.9.1-3

A flaw was found in the VirGL virtual OpenGL renderer virglrenderer. The virgl did not properly initialize memory when allocating a host-backed memory resource. A malicious guest could use this flaw to mmap from the guest kernel and read this uninitialized memory from the host, possibly leading t...

AZL-10772 CVE-2022-0175 affecting package virglrenderer for versions less than 0.9.1-3

A flaw was found in the VirGL virtual OpenGL renderer virglrenderer. The virgl did not properly initialize memory when allocating a host-backed memory resource. A malicious guest could use this flaw to mmap from the guest kernel and read this uninitialized memory from the host, possibly leading t...

CVE-2022-23037

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

UBUNTU-CVE-2022-23041

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

ALPINE-CVE-2021-28710

certain VT-d IOMMUs may not work in shared page table mode For efficiency reasons, address translation control structures page tables may and, on suitable hardware, by default will be shared between CPUs, for second-level translation EPT, and IOMMUs. These page tables are presently set up to alwa...

USN-5072-1 linux-azure-5.8, linux-oem-5.10 vulnerabilities

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory...

Xen 竞争条件问题漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. A security vulnerability exists in Xen where...

UBUNTU-CVE-2021-28694

IOMMU page mapping issues on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresse...

kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...

QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure

A heap buffer overflow flaw was found in the iSCSI support of QEMU. This flaw could lead to an out-of-bounds read access and possible information disclosure from the QEMU process memory to a malicious guest. The highest threat from this vulnerability is to data confidentiality...

kernel: kvm: Information leak within a KVM guest

A flaw was found in the way Linux kernel's KVM hypervisor handled deferred TLB flush requests from guest. A race condition may occur between the guest issuing a deferred TLB flush request to KVM, and then KVM handling and acknowledging it. This may result in invalid address translations from TLB...

CVE-2019-3016

A flaw was found in the way Linux kernel's KVM hypervisor handled deferred TLB flush requests from guest. A race condition may occur between the guest issuing a deferred TLB flush request to KVM, and then KVM handling and acknowledging it. This may result in invalid address translations from TLB...

PT-2019-17773 · Freebsd · Bhyve +1

Name of the Vulnerable Software and Affected Versions: FreeBSD versions 11.2-RELEASE through 11.2-RELEASE-p11 FreeBSD versions 11.3-RELEASE through 11.3-RELEASE-p0 FreeBSD versions 12.0-RELEASE through 12.0-RELEASE-p7 FreeBSD versions 11.3-STABLE before r350247 FreeBSD versions 12.0-STABLE before...

UBUNTU-CVE-2017-11334

The addressspacewritecontinue function in exec.c in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service out-of-bounds access and guest instance crash by leveraging use of qemumapramptr to access guest ram block area...

DEBIAN-CVE-2015-5261

Heap-based buffer overflow in SPICE before 0.12.6 allows guest OS users to read and write to arbitrary memory locations on the host via guest QXL commands related to surface creation...

spice: Host memory access from guest with invalid primary surface parameters

A memory access flaw was found in the way spice handled certain guests using crafted primary surface parameters. A user in a guest could use this flaw to read from and write to arbitrary memory locations on the host...

UBUNTU-CVE-2016-5105

The megasasdcmdcfgread function in hw/scsi/megasas.c in QEMU, when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, uses an uninitialized variable, which allows local guest administrators to read host memory via vectors involving a MegaRAID Firmware Interface MFI command...

SUSE-SU-2016:1259-1 Security update for spice

Spice was updated to fix three security issues. The following vulnerabilities were fixed: CVE-2015-3247: heap corruption in the spice server bsc944460 CVE-2015-5261: Guest could have accessed host memory using crafted images bsc948976 CVE-2015-5260: Insufficient validation of surfaceid parameter...

spice: host memory access from guest using crafted images

A heap-based buffer overflow flaw was found in the way SPICE handled certain guest QXL commands related to surface creation. A user in a guest could use this flaw to read and write arbitrary memory locations on the host...

spice: host memory access from guest using crafted images

A heap-based buffer overflow flaw was found in the way SPICE handled certain guest QXL commands related to surface creation. A user in a guest could use this flaw to read and write arbitrary memory locations on the host...