Integer overflow in BusyBox - CVE-2016-2147

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Main Vulnerability Database Vulnerabilities #VU33069

Integer overflow in BusyBox - CVE-2016-2147

Published: February 9, 2017 / Updated: August 3, 2020


Vulnerability identifier: #VU33069
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-2147
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.


Affected software

BusyBox
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Enterprise Storage
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Desktop
openSUSE Leap
busybox (Alpine package)
busybox
busybox-static
busybox-testsuite
busybox-warewulf3

How to mitigate CVE-2016-2147

Install update from vendor's website.

BusyBox - update to 1.25.0
busybox (Alpine package) - update to 1.24.2-r0
busybox - addressed in versions 1.34.1-4.9.1, 1.35.0-4.3.1, 1.35.0-150400.3.3.1
busybox-static - addressed in versions 1.34.1-4.9.1, 1.35.0-150400.3.3.1
busybox-testsuite - update to 1.35.0-150400.3.3.1
busybox-warewulf3 - update to 1.35.0-150400.3.3.1

External References

Related Security Bulletins