Improper Input Validation Affecting qemu package, versions <1:2.8+dfsg-3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-QEMU-18321735
  • published27 Jul 2026
  • disclosed5 Oct 2016

Introduced: 5 Oct 2016

CVE-2016-7907  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

Upgrade Echo:latest qemu to version 1:2.8+dfsg-3 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

CVSS Base Scores

version 3.1