CVE-2016-2857

Name: CVE-2016-2857
Creator: NVD / NIST
Published: 2016-04-12T02:00:07.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.4/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2016-2857 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.

Metrics

CVSS 3.1

8.4/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

EPSS Probability

0.57%

42.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 2.5.1.1
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10
Canonical	Ubuntu Linux	16.04
Debian	Debian Linux	8.0
Redhat	Openstack	5.0
Redhat	Virtualization	3.0
Redhat	Virtualization	4.0
Redhat	Openstack	6.0
Redhat	Openstack	7.0
Redhat	Openstack	8
Redhat	Openstack	9
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Eus	7.3
Redhat	Enterprise Linux Eus	7.4
Redhat	Enterprise Linux Eus	7.5
Redhat	Enterprise Linux Eus	7.6
Redhat	Enterprise Linux Eus	7.7
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.3
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Aus	7.7
Redhat	Enterprise Linux Server Tus	7.3
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Server Tus	7.7
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0

References

http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=362786f14a753d8a5256ef97d7c10ed576d6572b
http://rhn.redhat.com/errata/RHSA-2016-2670.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2671.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2704.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2705.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2706.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0083.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0309.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0334.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0344.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0350.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/03/9Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/07/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/84130Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2974-1Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=362786f14a753d8a5256ef97d7c10ed576d6572b
http://rhn.redhat.com/errata/RHSA-2016-2670.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2671.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2704.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2705.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2706.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0083.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0309.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0334.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0344.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0350.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/03/9Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/07/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/84130Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2974-1Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory

Timeline

Published: Apr 12, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2857?

The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.

How severe is CVE-2016-2857?

CVE-2016-2857 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2857?

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-2016-2857?

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

Scan your code now

Source: NVD / NIST