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Fedora 25: QEMU Update Addresses Critical Memory Leaks and Threats

fedora
Calendar Grey January 20, 2017
Dist Fedora Esm H88
Ubuntu 20.04 patch resolves major vulnerabilities in KVM related to data management and possible data exposure.
* CVE-2016-6836: vmxnet: Information leakage in vmxnet3_complete_packet (bz #1366370) * CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr (bz #1381196) * CVE-2016-7994: virtio...

Summary

QEMU is a generic and open source processor emulator which achieves a good

emulation speed by using dynamic translation. QEMU has two operating modes:

* Full system emulation. In this mode, QEMU emulates a full system (for

example a PC), including a processor and various peripherials. It can be

used to launch different Operating Systems without rebooting the PC or

to debug system code.

* User mode emulation. In this mode, QEMU can launch Linux processes compiled

for one CPU on another CPU.

As QEMU requires no host kernel patches to run, it is safe and easy to use.

Update Information:

* CVE-2016-6836: vmxnet: Information leakage in vmxnet3_complete_packet (bz #1366370) * CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr (bz #1381196) * CVE-2016-7994: virtio-gpu: memory leak in resource_create_2d (bz #1382667) * CVE-2016-8577: 9pfs: host memory leakage in v9fs_read (bz #1383286) * CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs routines (bz #1383292) * CVE-2016-8668: OOB buffer access in rocker switch emulation (bz #1384898) * CVE-2016-8669: divide by zero error in serial_update_parameters (bz #1384911) * CVE-2016-8909: intel-hda: infinite loop in dma buffer stream (bz #1388053) * Infinite loop vulnerability in a9_gtimer_update (bz #1388300) * CVE-2016-9101: eepro100: memory leakage at device unplug (bz #1389539) * CVE-2016-9103: 9pfs: information leakage via xattr (bz #1389643) * CVE-2016-9102: 9pfs: memory leakage when creating extended attribute (bz #1389551) * CVE-2016-9104: 9pfs: integer overflow leading to OOB access (bz #1389687) * CVE-2016-9105...

Change Log

References


[ 1 ] Bug #1366369 - CVE-2016-6836 Qemu: net: vmxnet: Information leakage in vmxnet3_complete_packet https://bugzilla.redhat.com/show_bug.cgi?id=1366369 [ 2 ] Bug #1329538 - CVE-2016-7909 Qemu: net: pcnet: infinite loop in pcnet_rdra_addr() https://bugzilla.redhat.com/show_bug.cgi?id=1329538 [ 3 ] Bug #1382666 - CVE-2016-7994 Qemu: virtio-gpu: memory leak in virtio_gpu_resource_create_2d https://bugzilla.redhat.com/show_bug.cgi?id=1382666 [ 4 ] Bug #1383285 - CVE-2016-8577 Qemu: 9pfs: host memory leakage in v9fs_read https://bugzilla.redhat.com/show_bug.cgi?id=1383285 [ 5 ] Bug #1383291 - CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines https://bugzilla.redhat.com/show_bug.cgi?id=1383291 [ 6 ] Bug #1384896 - CVE-2016-8668 Qemu: net: OOB buffer access in rocker switch emulation https://bugzilla.redhat.com/show_bug.cgi?id=1384896 [ 7 ] Bug #1384909 - CVE-2016-8669 Qemu: char: divide by zero error in seri...

Read the Full Advisory

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade qemu' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html

Severity
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Name: qemu
Product: Fedora 25
Version: 2.7.1
Release: 2.fc25
Summary: QEMU is a FAST! processor emulator

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