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Fedora 21: 2015-8249 Critical: QEMU Out-Of-Bounds Access Threat

fedora
Calendar Grey May 17, 2015
Scroller Fedora
Important kernel update for Fedora 21 resolves vulnerabilities related to improper memory handling and bolsters overall system security.
* CVE-2015-3456: (VENOM) fdc: out-of-bounds fifo buffer memory access (bz #1221152)

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-2015-3456: (VENOM) fdc: out-of-bounds fifo buffer memory access (bz #1221152)

Topics%20covered

Topics Covered

security advisory critical Fedora memory access out-of-bounds QEMU buffer

Change Log

* Wed May 13 2015 Cole Robinson - 2:2.1.3-7 - CVE-2015-3456: (VENOM) fdc: out-of-bounds fifo buffer memory access (bz * Tue Apr 14 2015 Haïkel Guémar - 2:2.1.3-6 - Reintroduce upstream patch fixing some qemu-img conversion errors (RHBZ#1200043) * Thu Apr 2 2015 Cole Robinson - 2:2.1.3-5 - CVE-2015-1779 vnc: insufficient resource limiting in VNC websockets decoder (bz #1205051, bz #1199572) * Fri Mar 27 2015 Cole Robinson - 2:2.1.3-4 - Qemu: PRDT overflow from guest to host (bz #1204919, bz #1205322) - CVE-2014-8106: cirrus: insufficient blit region checks (bz #1170612, bz - Fix .vdi disk corruption (bz #1199400) - Don't install ksm services as executable (bz #1192720) * Tue Mar 10 2015 Haïkel Guémar - 2:2.1.3-3 - Backport upstream patch fixing some qemu-img conversion errors (RHBZ#1200043) * Sat Feb 7 2015 Cole Robinson - 2:2.1.3-2 - Fix USB host assignment (bz #1187749) * Wed Jan 28 2015 Cole Robinson - 2:2.1.3-1 - Rebased to version 2.1.3 * Wed Jan 28 2015 Daniel P. Berrange - 2:2.1.2-8 - Pass package information to configure * Sun Nov 30 2014 Cole Robinson - 2:2.1.2-7 - Fix qemu-img convert corruption for unflushed files (bz #1167249) - Fix SLES11 migration issue (bz #1109427) - CVE-2014-7840: insufficient parameter validation during ram load (bz

References


[ 1 ] Bug #1218611 - CVE-2015-3456 qemu: fdc: out-of-bounds fifo buffer memory access https://bugzilla.redhat.com/show_bug.cgi?id=1218611

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
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Name: qemu
Product: Fedora 21
Version: 2.1.3
Release: 7.fc21
URL: https://www.qemu.org/
Summary: QEMU is a FAST! processor emulator

Topics%20covered

Topics Covered

security advisory critical Fedora memory access out-of-bounds QEMU buffer

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