HOMEVULNERABILITIESCVE-2017-15650
HIGH

CVE-2017-15650

CWE-119Published: October 19, 2017· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

musl libc before 1.1.17 has a buffer overflow via crafted DNS replies because dns_parse_callback in network/lookup_name.c does not restrict the number of addresses, and thus an attacker can provide an unexpected number by sending A records in a reply to an AAAA query.

NVD Source

Technical Analysis

CVE-2017-15650 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.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

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

musl-libc1 product(s)
musl
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

ADVISORYhttp://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395
ADVISORYhttp://git.musl-libc.org/cgit/musl/tree/WHATSNEW
ADVISORYhttp://openwall.com/lists/oss-security/2017/10/19/5
ADVISORYhttp://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395
ADVISORYhttp://git.musl-libc.org/cgit/musl/tree/WHATSNEW
ADVISORYhttp://openwall.com/lists/oss-security/2017/10/19/5

All References (6)

→
http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395Vendor Advisory
→
http://git.musl-libc.org/cgit/musl/tree/WHATSNEWVendor Advisory
→
http://openwall.com/lists/oss-security/2017/10/19/5Mailing List · Mitigation · Third Party Advisory
→
http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395Vendor Advisory
→
http://git.musl-libc.org/cgit/musl/tree/WHATSNEWVendor Advisory
→
http://openwall.com/lists/oss-security/2017/10/19/5Mailing List · Mitigation · Third Party Advisory

Quick Facts

CVE IDCVE-2017-15650
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-119
CISA KEVNo
Affected1 vendor(s)
PublishedOct 19, 2017

Related CVEs (CWE-119)

CVE-2020-11896
10.0
CVE-2008-7232
10.0
CVE-2017-12087
10.0
CVE-2018-19417
10.0
CVE-2025-1866
10.0
CVE-2009-3849
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-15650 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. CVE data is provided under the NVD usage policy.
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