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Vulnerability of QEMU: memory corruption via iSCSI Block Driver

Synthesis of the vulnerability 

An attacker, inside a guest system, can trigger a memory corruption via iSCSI Block Driver of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
Vulnerable products: Debian, openSUSE Leap, QEMU, RHEL, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 24/01/2020.
Références of this bulletin: CVE-2020-1711, DLA-2144-1, DSA-4616-1, openSUSE-SU-2020:0468-1, RHSA-2020:0669-01, RHSA-2020:1150-01, RHSA-2020:1352-01, RHSA-2020:1358-01, RHSA-2020:1505-01, USN-4283-1, VIGILANCE-VUL-31422.

Description of the vulnerability 

An attacker, inside a guest system, can trigger a memory corruption via iSCSI Block Driver of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
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This weakness note impacts software or systems such as Debian, openSUSE Leap, QEMU, RHEL, Ubuntu.

Our Vigil@nce team determined that the severity of this threat note is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this computer weakness.

Solutions for this threat 

QEMU: patch for iSCSI Block Driver.
A patch is indicated in information sources.

Debian 8: new qemu packages.
New packages are available:
  Debian 8: qemu 1:2.1+dfsg-12+deb8u14

Debian 9/10: new qemu packages.
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u9
  Debian 10: qemu 1:3.1+dfsg-8+deb10u4

openSUSE Leap 15.1: new qemu packages.
New packages are available:
  openSUSE Leap 15.1: qemu 3.1.1.1-lp151.7.12.1

RHEL 7.5: new qemu-kvm-ma packages.
New packages are available:
  RHEL 7.5: qemu-kvm-ma 2.10.0-21.el7_5.5

RHEL 7.6: new qemu-kvm-ma packages.
New packages are available:
  RHEL 7.6: qemu-kvm-ma 2.12.0-18.el7_6.5

RHEL 7.7: new qemu-kvm-ma packages.
New packages are available:
  RHEL 7.7: qemu-kvm-ma 2.12.0-33.el7_7.3

RHEL 7: new qemu-kvm-ma packages.
New packages are available:
  RHEL 7.0-7.7: qemu-kvm-ma 2.12.0-44.el7

RHEL 8.1: new virt-rhel module.
The following module is updated:
  RHEL 8.1 Module: virt:rhel

Ubuntu: new qemu packages.
New packages are available:
  Ubuntu 19.10: qemu 1:4.0+dfsg-0ubuntu9.4
  Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.23
  Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.43

Wind River Linux: version 10.18.44.15.
The version 10.18.44.15 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.19.45.6.
The version 10.19.45.6 is fixed:
  https://support2.windriver.com/
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