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CVE-2016-2224

The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS...

7.5 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.80%Up 1.8 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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.

Record
CVE-2016-2224
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-400
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2016-2224
Updated
2026-11-02
EUVDEUVD-2016-3308 No score

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.

Record
EUVD-2016-3308
Updated
2026-11-03
GitHub AdvisoriesGHSA-f95j-r4jh-f3j8 7.5

The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS...

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.

Record
GHSA-f95j-r4jh-f3j8
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSV 7.5

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.

Record
CVE-2016-2224
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2016-2224 7.5

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.

Record
DEBIAN-CVE-2016-2224
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
uclibc
Debian:12
 before 1.0.20-1
1.0.20-1
uclibc
Debian:13
 before 1.0.20-1
1.0.20-1
uclibc
Debian:14
 before 1.0.20-1
1.0.20-1
uclibc
Debian:7
From an advisory covering 3 CVEs
 before 0.9.32-1+deb7u1, plus listed versions
0.9.32-1
0.9.32-1+deb7u1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-2224 is a high vulnerability (CVSS 7.5) in Uclibc-ng Project Uclibc-ng, published July 26, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.80%, the 86th percentile. Fixed in uclibc 1.0.20-1.

References

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