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Vulnerability of QEMU: use after free via SLiRP Packet Reassembly

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via SLiRP Packet Reassembly of QEMU, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, openSUSE Leap, Solaris, QEMU, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 06/09/2019.
Références of this computer vulnerability: CVE-2019-15890, DLA-1927-1, DSA-4616-1, openSUSE-SU-2019:2510-1, RHSA-2020:0775-01, RHSA-2020:0889-01, SUSE-SU-2019:2783-1, SUSE-SU-2019:2955-1, SUSE-SU-2020:0388-1, USN-4191-1, USN-4191-2, VIGILANCE-VUL-30265.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via SLiRP Packet Reassembly of QEMU, in order to trigger a denial of service, and possibly to run code.
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This cybersecurity bulletin impacts software or systems such as Debian, openSUSE Leap, Solaris, QEMU, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity weakness is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer vulnerability bulletin.

Solutions for this threat 

QEMU: version 4.0.1.
The version 4.0.1 is fixed:
  https://www.qemu.org/download/#source

QEMU: patch for SLiRP Packet Reassembly.
A patch is indicated in information sources.

Debian 8: new qemu packages (duplicate).
This bulletin is a duplicate of VIGILANCE-SOL-68382.

Debian 8: new qemu packages (original).
New packages are available:
  Debian 8: qemu 1:2.1+dfsg-12+deb8u12

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 (14/11/2019).
New packages are available:
  openSUSE Leap 15.1: qemu 3.1.1.1-lp151.7.6.1

Oracle Solaris: patch for third party software of April 2020 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 6.10: new qemu-kvm packages.
New packages are available:
  RHEL 6.10: qemu-kvm 0.12.1.2-2.506.el6_10.6

RHEL 7: new slirp4netns packages.
New packages are available:
  RHEL 7.7: slirp4netns 0.3.0-8.el7_7

SUSE LE 12 SP1: new xen packages.
New packages are available:
  SUSE LE 12 SP1: xen 4.5.5_28-22.64.1

SUSE LE 12 SP2: new xen packages.
New packages are available:
  SUSE LE 12 SP2: xen 4.7.6_06-43.54.2

SUSE LE 15 SP1: new qemu packages (13/11/2019).
New packages are available:
  SUSE LE 15 SP1: qemu 3.1.1.1-9.6.2

Ubuntu: new qemu packages.
New packages are available:
  Ubuntu 19.10: qemu 1:4.0+dfsg-0ubuntu9.1
  Ubuntu 19.04: qemu 1:3.1+dfsg-2ubuntu3.6
  Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.20
  Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.42
  Ubuntu 14.04 ESM: qemu 2.0.0+dfsg-2ubuntu1.47

Wind River Linux: version 10.18.44.11.
The version 10.18.44.11 is fixed:
  https://support2.windriver.com/
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