CVE-2014-3640

Name: CVE-2014-3640
Creator: NVD / NIST
Published: 2014-11-07T19:55:02.713+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.40%

Last modified Jun 17, 2026

CVE-2014-3640 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.40%

32.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	7.0
Qemu	Qemu	2.0.0
Qemu	Qemu	2.0.2
Qemu	Qemu	2.1.0
Qemu	Qemu	2.1.1
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Hpc Node	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0
Canonical	Ubuntu Linux	10.04
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	14.10

References

http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.htmlPatch, Vendor Advisory
http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.htmlPatch, Vendor Advisory
http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.htmlPatch, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-0349.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0624.htmlThird Party Advisory
http://www.debian.org/security/2014/dsa-3044
http://www.debian.org/security/2014/dsa-3045Third Party Advisory
http://www.ubuntu.com/usn/USN-2409-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1144818Issue Tracking
http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.htmlPatch, Vendor Advisory
http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.htmlPatch, Vendor Advisory
http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.htmlPatch, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-0349.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0624.htmlThird Party Advisory
http://www.debian.org/security/2014/dsa-3044
http://www.debian.org/security/2014/dsa-3045Third Party Advisory
http://www.ubuntu.com/usn/USN-2409-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1144818Issue Tracking

Timeline

Published: Nov 7, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-3640?

How severe is CVE-2014-3640?

Severity scoring for CVE-2014-3640 is pending analysis. The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2014-3640?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-3640?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST