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Vulnerability of QEMU: memory corruption via Registered ROM Loading

Synthesis of the vulnerability 

An attacker, inside a guest system, can trigger a memory corruption via Registered ROM Loading of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
Vulnerable products: Debian, QEMU, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 04/06/2020.
Références of this bulletin: CVE-2020-13765, DLA-2262-1, DLA-2288-1, USN-4467-1, VIGILANCE-VUL-32430.

Description of the vulnerability 

An attacker, inside a guest system, can trigger a memory corruption via Registered ROM Loading of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
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This computer weakness bulletin impacts software or systems such as Debian, QEMU, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat announce 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 threat announce.

Solutions for this threat 

QEMU: patch for Registered ROM Loading.
A patch is indicated in information sources.

Debian 8: new qemu packages.
New packages are available:
  Debian 8: qemu 1:2.1+dfsg-12+deb8u15

Debian 9: new qemu packages.
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u10

Ubuntu: new qemu packages.
New packages are available:
  Ubuntu 20.04 LTS: qemu 1:4.2-3ubuntu6.4
  Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.31
  Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.45
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