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Divide By Zero Affecting qemu package, versions <1:2.8+dfsg-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.06% (26th percentile)
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NVD
6.5 medium
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Red Hat
3 low

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  • Snyk ID SNYK-DEBIANUNSTABLE-QEMU-427296
  • published 23 Dec 2016
  • disclosed 23 Dec 2016
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Introduced: 23 Dec 2016

CVE-2016-9921 Open this link in a new tab
CWE-369 Open this link in a new tab

How to fix?

Upgrade Debian:unstable qemu to version 1:2.8+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.