CVE-2016-2147

Name: CVE-2016-2147
Creator: NVD / NIST
Published: 2017-02-09T15:59:00.893+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 8.05%

Last modified Jun 17, 2026

CVE-2016-2147 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.. EPSS estimates a 8.05% chance of exploitation in the next 30 days.

Description

Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

8.05%

94.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Busybox	Busybox	<= 1.24.2
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10

References

http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Jun/18Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2019/Sep/7Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2020/Aug/20Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/11/16Mailing List, Patch, Third Party Advisory
https://busybox.net/news.htmlVendor Advisory
https://git.busybox.net/busybox/commit/?id=d474ffc68290e0a83651c4432eeabfa62cd51e87Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.htmlMailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Jun/14Exploit, Mailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/7Exploit, Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/201612-04Third Party Advisory
https://usn.ubuntu.com/3935-1/Third Party Advisory
http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Jun/18Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2019/Sep/7Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2020/Aug/20Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/11/16Mailing List, Patch, Third Party Advisory
https://busybox.net/news.htmlVendor Advisory
https://git.busybox.net/busybox/commit/?id=d474ffc68290e0a83651c4432eeabfa62cd51e87Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.htmlMailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Jun/14Exploit, Mailing List, Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/7Exploit, Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/201612-04Third Party Advisory
https://usn.ubuntu.com/3935-1/Third Party Advisory

Timeline

Published: Feb 9, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2147?

How severe is CVE-2016-2147?

CVE-2016-2147 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 8.05% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2147?

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-2016-2147?

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

Scan your code now

Source: NVD / NIST