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CVE-2015-8818

Status Candidate

Overview

The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors.

Related Files

Red Hat Security Advisory 2016-2706-01
Posted Nov 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2706-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev. Security Fix: An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance.

tags | advisory
systems | linux, redhat
advisories | CVE-2015-8817, CVE-2015-8818
SHA-256 | 34ebf6833be3f8e06b1450c8d4b0768a9ee4ddf47d72a2dc7c01e2f31352f4a8
Red Hat Security Advisory 2016-2705-01
Posted Nov 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2705-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev. Security Fix: An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance.

tags | advisory
systems | linux, redhat
advisories | CVE-2015-8817, CVE-2015-8818
SHA-256 | 588ecdc7db1b9535e0fadaa19780440e5e7c00ae836c3d30d91b4d780cd3605d
Red Hat Security Advisory 2016-2704-01
Posted Nov 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2704-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev. Security Fix: An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance.

tags | advisory
systems | linux, redhat
advisories | CVE-2015-8817, CVE-2015-8818
SHA-256 | 4b59304042b5184a421ccdac24e9a3a137fd12ff1ce2a39859c76c926a881514
Red Hat Security Advisory 2016-2671-01
Posted Nov 8, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2671-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev. Security Fix: An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance.

tags | advisory
systems | linux, redhat
advisories | CVE-2015-8817, CVE-2015-8818
SHA-256 | 0c890acf0e4f2b7498b17f69f9a093176a6101177409f1bc1b5ee87aa09878b9
Red Hat Security Advisory 2016-2670-01
Posted Nov 8, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2670-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev. Security Fix: An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance.

tags | advisory
systems | linux, redhat
advisories | CVE-2015-8817, CVE-2015-8818
SHA-256 | d50c120347826cd5e2ca4f6659fbb3d76e5dcd8c32ab3857ca951d6ea6b710e5
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