VulnerabilityModified
CVE-2016-2147
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.
HIGH 7.5EPSS 7.71%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 7.71% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- busybox/busybox · debian/debian linux · canonical/ubuntu linux
- Source
- secalert@redhat.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.