SB2017020920 - Integer overflow in busybox.net BusyBox
Published: February 9, 2017 Updated: August 3, 2020
Security Bulletin ID
SB2017020920
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer overflow (CVE-ID: CVE-2016-2147)
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.
Remediation
Install update from vendor's website.
References
- http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
- http://seclists.org/fulldisclosure/2019/Jun/18
- http://seclists.org/fulldisclosure/2019/Sep/7
- http://www.openwall.com/lists/oss-security/2016/03/11/16
- https://busybox.net/news.html
- https://git.busybox.net/busybox/commit/?id=d474ffc68290e0a83651c4432eeabfa62cd51e87
- https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html
- https://seclists.org/bugtraq/2019/Jun/14
- https://seclists.org/bugtraq/2019/Sep/7
- https://security.gentoo.org/glsa/201612-04
- https://usn.ubuntu.com/3935-1/