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Vulnerability of QEMU: memory corruption via hw/sd/sdhci.c

Synthesis of the vulnerability 

An attacker, inside a guest system, can trigger a memory corruption via hw/sd/sdhci.c of QEMU, in order to trigger a denial of service, and possibly to run code on the host system.
Vulnerable software: Debian, QEMU, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 17/09/2020.
Références of this computer vulnerability: CVE-2020-17380, CVE-2020-25085, DLA-2469-1, DLA-2623-1, SUSE-SU-2021:1837-1, SUSE-SU-2021:1893-1, SUSE-SU-2021:1942-1, USN-4650-1, VIGILANCE-VUL-33343.

Description of the vulnerability 

An attacker, inside a guest system, can trigger a memory corruption via hw/sd/sdhci.c 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 vulnerability alert impacts software or systems such as Debian, QEMU, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this security vulnerability.

Solutions for this threat 

QEMU: patch for hw/sd/sdhci.c.
A patch is indicated in information sources.

Debian 9: new qemu packages (12/04/2021).
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u14

Debian 9: new qemu packages (30/11/2020).
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u12

SUSE LE 12 SP5: new qemu packages (02/06/2021).
New packages are available:
  SUSE LE 12 SP5: qemu 3.1.1.1-51.1

SUSE LE 15 SP2: new qemu packages (08/06/2021).
New packages are available:
  SUSE LE 15 SP2: qemu 4.2.1-11.19.2

SUSE LE 15 SP3: new qemu packages.
New packages are available:
  SUSE LE 15 SP3: qemu 5.2.0-17.1

Ubuntu: new qemu packages.
New packages are available:
  Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.48
  Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.34
  Ubuntu 20.04 LTS: qemu 1:4.2-3ubuntu6.10
  Ubuntu 20.10: qemu 1:5.0-5ubuntu9.2
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