NULL Pointer Dereference Affecting qemu package, versions <2.0.0+dfsg-2ubuntu1.7


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UBUNTU1404-QEMU-427645
  • published7 Nov 2014
  • disclosed7 Nov 2014

Introduced: 7 Nov 2014

CVE-2014-3640  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 qemu to version 2.0.0+dfsg-2ubuntu1.7 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 Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.

CVSS Scores

version 3.1