HIGH
CVE-2016-2224
CWE-400Published: March 24, 2017· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via vectors involving compressed items in a reply.
Technical Analysis
CVE-2016-2224 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
uclibc-ng_project1 product(s)
uclibc-ng
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://repo.or.cz/uclibc-ng.git/commit/d9c3a16dcab57d6b56225b9a67e9119cc9e2e4acIssue Tracking · Patch · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/02/05/2Mailing List · Patch · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/02/05/3Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/82903Third Party Advisory · VDB Entry
→
https://security-tracker.debian.org/tracker/CVE-2016-2224Issue Tracking · Patch · Third Party Advisory
→
http://repo.or.cz/uclibc-ng.git/commit/d9c3a16dcab57d6b56225b9a67e9119cc9e2e4acIssue Tracking · Patch · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/02/05/2Mailing List · Patch · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/02/05/3Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/82903Third Party Advisory · VDB Entry
→
https://security-tracker.debian.org/tracker/CVE-2016-2224Issue Tracking · Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2016-2224
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-400
CISA KEVNo
Affected1 vendor(s)
PublishedMar 24, 2017
Related CVEs (CWE-400)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-2224 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.