A qemu security update has been released for Debian GNU/Linux 10 to address multiple security issues.

DSA 4760-1: qemu security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4760-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
September 06, 2020   https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : qemu
CVE ID : CVE-2020-12829 CVE-2020-14364 CVE-2020-15863 CVE-2020-16092
Debian Bug : 961451 968947

Multiple security issues were discovered in QEMU, a fast processor
emulator:

CVE-2020-12829

An integer overflow in the sm501 display device may result in denial of
service.

CVE-2020-14364

An out-of-bands write in the USB emulation code may result in
guest-to-host code execution.

CVE-2020-15863

A buffer overflow in the XGMAC network device may result in denial of
service or the execution of arbitrary code.

CVE-2020-16092

A triggerable assert in the e1000e and vmxnet3 devices may result in
denial of service.

For the stable distribution (buster), these problems have been fixed in
version 1:3.1+dfsg-8+deb10u8.

We recommend that you upgrade your qemu packages.

For the detailed security status of qemu please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/qemu

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://www.debian.org/security/