2.1
LOW
CVE-2014-3640
QEMU UDP NULL Pointer Dereference Denial of Service
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.

INFO

Published Date :

Nov. 7, 2014, 7:55 p.m.

Last Modified :

Feb. 13, 2023, 12:41 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

2.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2014-3640 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux_desktop
2 Redhat enterprise_linux_server
3 Redhat enterprise_linux_workstation
4 Redhat enterprise_linux_hpc_node
1 Canonical ubuntu_linux
1 Debian debian_linux
1 Qemu qemu
: Total Affected Vendor : 4 | Products : 7
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2014-3640.

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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2014-3640 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2014-3640 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2023

    Action Type Old Value New Value
    Changed Description A NULL pointer dereference flaw was found in the way QEMU handled UDP packets with a source port and address of 0 when QEMU's user networking was in use. A local guest user could use this flaw to crash the guest. 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.
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:M/Au:S/C:N/I:N/A:C)
    Removed Reference https://access.redhat.com/errata/RHSA-2015:0349 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2015:0624 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2014-3640 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed 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. A NULL pointer dereference flaw was found in the way QEMU handled UDP packets with a source port and address of 0 when QEMU's user networking was in use. A local guest user could use this flaw to crash the guest.
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:M/Au:S/C:N/I:N/A:C)
    Added Reference https://access.redhat.com/security/cve/CVE-2014-3640 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2015:0349 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2015:0624 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 04, 2017

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2014/dsa-3044 [No Types Assigned]
  • Modified Analysis by [email protected]

    Aug. 31, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:qemu:qemu:2.0.0:rc3:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:rc2:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:rc1:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:-:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:*:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc1:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc2:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc3:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc5:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.2:*:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.1:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:qemu:qemu:2.0.0:rc3:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:rc2:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:rc1:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.0:-:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:*:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc1:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc2:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc3:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.0:rc5:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.0.2:*:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.1.1:*:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Configuration 4 OR *cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
    Changed Reference Type http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.html No Types Assigned http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.html Vendor Advisory, Patch
    Changed Reference Type http://rhn.redhat.com/errata/RHSA-2015-0349.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2015-0349.html Third Party Advisory
    Changed Reference Type http://www.debian.org/security/2014/dsa-3045 No Types Assigned http://www.debian.org/security/2014/dsa-3045 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1144818 Vendor Advisory https://bugzilla.redhat.com/show_bug.cgi?id=1144818 Issue Tracking
    Changed Reference Type http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.html No Types Assigned http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.html Vendor Advisory, Patch
    Changed Reference Type http://rhn.redhat.com/errata/RHSA-2015-0624.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2015-0624.html Third Party Advisory
    Changed Reference Type http://www.ubuntu.com/usn/USN-2409-1 No Types Assigned http://www.ubuntu.com/usn/USN-2409-1 Third Party Advisory
    Changed Reference Type http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.html No Types Assigned http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.html Vendor Advisory, Patch
    Added CWE CWE-476
  • CVE Modified by [email protected]

    Mar. 18, 2015

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2015-0349.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2015-0624.html
  • CVE Modified by [email protected]

    Nov. 19, 2014

    Action Type Old Value New Value
    Added Reference http://www.ubuntu.com/usn/USN-2409-1
  • Initial Analysis by [email protected]

    Nov. 10, 2014

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2014-3640 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2014-3640 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability
: