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Fedora 20 Security Advisory FEDORA-2015-8248 Critical Buffer Overflow

fedora
Calendar Grey May 22, 2015
Dist Fedora Esm H88
Urgent security notice for Fedora 20 concerning CVE-2015-3456 in QEMU, highlighting a remedy for out-of-bounds memory access vulnerability.
* 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 fedora buffer overflow critical memory access out-of-bounds qemu

Change Log

* Wed May 13 2015 Cole Robinson - 2:1.6.2-14 - CVE-2015-3456: (VENOM) fdc: out-of-bounds fifo buffer memory access (bz * Sat Feb 7 2015 Cole Robinson - 2:1.6.2-13 - Fix qemu_bh_schedule race condition (bz #1165315) - CVE-2014-8106: cirrus: insufficient blit region checks * Tue Dec 9 2014 Cole Robinson - 2:1.6.2-12 - Fix qemu-img convert corruption for unflushed files (bz #1167249) * Sun Nov 30 2014 Cole Robinson - 2:1.6.2-11 - Fix SLES11 migration issue (bz #1109427) - CVE-2014-7840: insufficient parameter validation during ram load (bz * Wed Oct 29 2014 Cole Robinson - 2:1.6.2-10 - CVE-2014-7815 vnc: insufficient bits_per_pixel from the client sanitization (bz #1157647, bz #1157641) - CVE-2014-3689 vmware_vga: insufficient parameter validation in rectangle functions (bz #1153038, bz #1153035) * Fri Sep 26 2014 Cole Robinson - 2:1.6.2-9 - CVE-2014-3640 qemu: slirp: NULL pointer (bz #1144821, bz #1144818) * Mon Sep 8 2014 Cole Robinson - 2:1.6.2-8 - Fix spice audio playback sample rate (bz #1129961) - Fix virtio-blk migration incompatibility caused by CVE backport (bz - CVE-2014-3615 Fix crash when guest sets high resolution (bz #1139121, bz * Thu Jul 17 2014 Rex Dieter - 2:1.6.2-7 - rebuild (for pulseaudio, bug #1117683) * Sat May 31 2014 Cole Robinson - 2:1.6.2-6 - QCOW1 validation CVEs: CVE-2014-0222, CVE-2014-0223 (bz #1097232, bz - CVE-2014-3461: Issues in USB post load checks (bz #1097260, bz #1096821) * Sun May 11 2014 Cole Robinson - 2:1.6.2-5 - Migration CVEs: CVE-2014-0182 etc. * Tue Apr 29 2014 Cole Robinson - 2:1.6.2-4 - Fix arm sd warnings with latest kernel (bz #1091548) - Fix regression in CVE backport that affects openstack (thanks lbezdick) * Fri Apr 25 2014 Cole Robinson - 2:1.6.2-3 - Fix guest startup crashes from autotest (bz #1081610) * Thu Apr 24 2014 Cole Robinson - 2:1.6.2-2 - Block/image format validation CVE-2014-0142 - 2014-0148 (bz #1078201, bz - CVE-2014-0150: virtio-net: buffer overflow in virtio_net_handle_mac() function (bz #1086775, bz #1078846) - CVE-2013-4544: vmxnet3: bounds checking buffer overrun (bz #1087513, bz - CVE-2014-2894: out of bounds buffer accesses, guest triggerable via IDE SMART (bz #1087981, bz #1087971) * Wed Mar 19 2014 Cole Robinson - 2:1.6.2-1 - Fix bogus libcacard dep on gluster (bz #987441) - Fix mouse with -display gtk -vga qxl (bz #1051724) - Change gtk quit accelerator to ctrl+shift+q (bz #1062393) - Fix crash during virtio-scsi hotplug (bz #1051611) * Wed Dec 18 2013 Cole Robinson - 2:1.6.1-3 - Add kill() to seccomp whitelist, fix AC97 with -sandbox on (bz #1043521) - Changing streaming mode default to off for spice (bz #1038336) - Fix guest scsi verify command (bz #1001617) - Fix performance regression after save/restore (bz #917723)

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
critical
Lowest
Low
Medium
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Critical

Name: qemu
Product: Fedora 20
Version: 1.6.2
Release: 14.fc20
URL: https://www.qemu.org/
Summary: QEMU is a FAST! processor emulator

Topics%20covered

Topics Covered

security advisory fedora buffer overflow critical memory access out-of-bounds qemu

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