A qemu security update has been released for Debian GNU/Linux 10 to address a denial of service issue.

DSA 4733-1: qemu security update

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Debian Security Advisory DSA-4733-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
July 24, 2020 https://www.debian.org/security/faq
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Package : qemu
CVE ID : CVE-2020-8608
Debian Bug : 964793

It was discovered that incorrect memory handling in the SLIRP networking
implementation could result in denial of service or potentially the
execution of arbitrary code.

For the stable distribution (buster), this problem has been fixed in
version 1:3.1+dfsg-8+deb10u7. In addition this update fixes a regression
caused by the patch for CVE-2020-13754, which could lead to startup
failures in some Xen setups.

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/