CVE-2017-15650

Name: CVE-2017-15650
Creator: NVD / NIST
Published: 2017-10-19T23:29:00.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.02%

Last modified Jun 17, 2026

CVE-2017-15650 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.02% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.02%

78.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Musl-Libc	Musl	<= 1.1.6

References

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

Timeline

Published: Oct 19, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-15650?

How severe is CVE-2017-15650?

Severity scoring for CVE-2017-15650 is pending analysis. The EPSS model estimates a 2.02% probability of exploitation in the next 30 days.

How do I fix CVE-2017-15650?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-15650?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST