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Fedora 22 QEMU Security Advisory: Critical Memory Issues Resolved

fedora
Calendar Grey February 2, 2016
Dist Fedora Esm H88
The Fedora 22 QEMU security update tackles serious vulnerabilities known through Common Vulnerabilities and Exposures, focusing on memory management and access control
* CVE-2015-8567: net: vmxnet3: host memory leakage (bz #1289818) * CVE-2016-1922: i386: avoid null pointer dereference (bz #1292766) * CVE-2015-8613: buffer overflow in megasas_ctr...

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-2015-8567: net: vmxnet3: host memory leakage (bz #1289818) * CVE-2016-1922: i386: avoid null pointer dereference (bz #1292766) * CVE-2015-8613: buffer overflow in megasas_ctrl_get_info (bz #1284008) * CVE-2015-8743: ne2000: OOB memory access in ioport r/w functions (bz #1294787)

Topics%20covered

Topics Covered

security advisory buffer overflow critical Fedora access issue memory leak QEMU

Change Log

References


[ 1 ] Bug #1284008 - CVE-2015-8613 Qemu: scsi: stack based buffer overflow in megasas_ctrl_get_info https://bugzilla.redhat.com/show_bug.cgi?id=1284008 [ 2 ] Bug #1289816 - CVE-2015-8568 CVE-2015-8567 Qemu: net: vmxnet3: host memory leakage https://bugzilla.redhat.com/show_bug.cgi?id=1289816 [ 3 ] Bug #1283934 - CVE-2016-1922 Qemu: i386: null pointer dereference in vapic_write() https://bugzilla.redhat.com/show_bug.cgi?id=1283934 [ 4 ] Bug #1264929 - CVE-2015-8743 Qemu: net: ne2000: OOB memory access in ioport r/w functions https://bugzilla.redhat.com/show_bug.cgi?id=1264929

Update Instructions

This update can be installed with the "yum" update program. Use su -c 'yum update qemu' at the command line. For more information, refer to "Managing Software with yum", available at .

Severity
critical
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Name: qemu
Product: Fedora 22
Version: 2.3.1
Release: 11.fc22
URL: https://www.qemu.org/
Summary: QEMU is a FAST! processor emulator

Topics%20covered

Topics Covered

security advisory buffer overflow critical Fedora access issue memory leak QEMU

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