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Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu package, versions <1:2.5+dfsg-5

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

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

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  • Snyk ID SNYK-DEBIANUNSTABLE-QEMU-427249
  • published 29 Dec 2016
  • disclosed 29 Dec 2016
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Introduced: 29 Dec 2016

CVE-2016-1981 Open this link in a new tab
CWE-835 Open this link in a new tab

How to fix?

Upgrade Debian:unstable qemu to version 1:2.5+dfsg-5 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.

QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the initial receive/transmit descriptor head (TDH/RDH) is set outside the allocated descriptor buffer. A privileged user inside guest could use this flaw to crash the QEMU instance resulting in DoS.