CVE-2016-2147
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
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.
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Ubuntu Affected 4 releases
| Version | Status | Fixed in |
|---|---|---|
| 18.10 | Affected | — |
| 18.04 | Affected | — |
| 16.04 | Affected | — |
| 14.04 | Affected | — |
Debian Mixed 7 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1:1.27.2-1 |
| sid | Fixed | 1:1.27.2-1 |
| forky | Fixed | 1:1.27.2-1 |
| bullseye | Fixed | 1:1.27.2-1 |
| bookworm | Fixed | 1:1.27.2-1 |
| 9.0 | Affected | — |
| 8.0 | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| busybox | busybox | {"endIncluding":"1.24.2"} | |
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://seclists.org/fulldisclosure/2020/Aug/20
- 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://lists.debian.org/debian-lts-announce/2021/02/msg00020.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/
- https://security-tracker.debian.org/tracker/CVE-2016-2147
CWEs
CWE-190
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.