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Fedora 23: 2016-42778e8c82 Moderate: QEMU Memory Leaks And Overflows

fedora
Calendar Grey January 24, 2016
Dist Fedora Esm H88
Keep up to date with QEMU's latest security patches for Fedora, which encompass vital resolutions for memory vulnerabilities and buffer overflow exploits.
* CVE-2015-8745: vmxnet3: don't assert reading registers in bar0 (bz #1295442) * CVE-2015-8567: net: vmxnet3: host memory leakage (bz #1289818) * CVE-2016-1922: i386: avoid null po...

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-2015-8745: vmxnet3: don't assert reading registers in bar0 (bz #1295442) * 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-2015-8701: Buffer overflow in tx_consume in rocker.c (bz #1293720) * CVE-2015-8743: ne2000: OOB memory access in ioport r/w functions (bz #1294787) * CVE-2016-1568: Use-after-free vulnerability in ahci (bz #1297023) * Fix modules.d/kvm.conf example syntax (bz #1298823)

Topics%20covered

Topics Covered

security advisory update buffer overflow Fedora memory leak dos 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 #1270876 - CVE-2015-8745 Qemu: net: vmxnet3: reading IMR registers leads to a crash via assert(2) call https://bugzilla.redhat.com/show_bug.cgi?id=1270876 [ 3 ] Bug #1289816 - CVE-2015-8568 CVE-2015-8567 Qemu: net: vmxnet3: host memory leakage https://bugzilla.redhat.com/show_bug.cgi?id=1289816 [ 4 ] Bug #1283934 - CVE-2016-1922 Qemu: i386: null pointer dereference in vapic_write() https://bugzilla.redhat.com/show_bug.cgi?id=1283934 [ 5 ] Bug #1286971 - CVE-2015-8701 Qemu: net: rocker: stack buffer overflow(off-by-one) in tx_consume routine https://bugzilla.redhat.com/show_bug.cgi?id=1286971 [ 6 ] 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 [ 7 ] Bug #1288532 - CVE-2...

Read the Full Advisory

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
important
Lowest
Low
Medium
High
Critical

Name: qemu
Product: Fedora 23
Version: 2.4.1
Release: 6.fc23
URL: https://www.qemu.org/
Summary: QEMU is a FAST! processor emulator

Topics%20covered

Topics Covered

security advisory update buffer overflow Fedora memory leak dos qemu

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