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SUSE-SU-2018:2679-1

Опубликовано: 10 сент. 2018
Источник: suse-cvrf

Описание

Security update for qemu

This update for qemu fixes the following issues:

This security issue was fixed:

  • CVE-2018-12617: qmp_guest_file_read had an integer overflow that could have been exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket causing DoS (bsc#1098735)

These non-security issues were fixed:

  • Allow kvm group access to /dev/sev (bsc#1102604).
  • Fix for the value used for reduced_phys_bits. Please update the reduced_phys_bits value used on the commandline or in libvirt XML to the value 1 (explicitly set now in QEMU code). (bsc#1103628)
  • Fix (again) the qemu guest agent udev rule file, which got unfixed in a series of unfortunate events (bsc#1094898 and now bsc#1105279)

Список пакетов

SUSE Linux Enterprise Module for Basesystem 15
qemu-tools-2.11.2-9.9.1
SUSE Linux Enterprise Module for Server Applications 15
qemu-2.11.2-9.9.1
qemu-arm-2.11.2-9.9.1
qemu-block-curl-2.11.2-9.9.1
qemu-block-iscsi-2.11.2-9.9.1
qemu-block-rbd-2.11.2-9.9.1
qemu-block-ssh-2.11.2-9.9.1
qemu-guest-agent-2.11.2-9.9.1
qemu-ipxe-1.0.0-9.9.1
qemu-kvm-2.11.2-9.9.1
qemu-lang-2.11.2-9.9.1
qemu-ppc-2.11.2-9.9.1
qemu-s390-2.11.2-9.9.1
qemu-seabios-1.11.0-9.9.1
qemu-sgabios-8-9.9.1
qemu-vgabios-1.11.0-9.9.1
qemu-x86-2.11.2-9.9.1

Ссылки

Описание

qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.

Затронутые продукты
SUSE Linux Enterprise Module for Basesystem 15:qemu-tools-2.11.2-9.9.1
SUSE Linux Enterprise Module for Server Applications 15:qemu-2.11.2-9.9.1
SUSE Linux Enterprise Module for Server Applications 15:qemu-arm-2.11.2-9.9.1
SUSE Linux Enterprise Module for Server Applications 15:qemu-block-curl-2.11.2-9.9.1
Ссылки