CVE-2016-5417

Name: CVE-2016-5417
Creator: NVD / NIST
Published: 2017-02-17T02:59:13.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.36%

Last modified Jun 17, 2026

CVE-2016-5417 is a vulnerability of currently unknown severity. Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures.. EPSS estimates a 3.36% chance of exploitation in the next 30 days.

Description

Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures.

Metrics

EPSS Probability

3.36%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Gnu	Glibc	<= 2.23

References

http://www.openwall.com/lists/oss-security/2016/08/02/5Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/92257Third Party Advisory, VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=19257Issue Tracking, Patch, Third Party Advisory, VDB Entry
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7
https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.htmlRelease Notes
http://www.openwall.com/lists/oss-security/2016/08/02/5Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/92257Third Party Advisory, VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=19257Issue Tracking, Patch, Third Party Advisory, VDB Entry
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7
https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.htmlRelease Notes

Timeline

Published: Feb 17, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-5417?

How severe is CVE-2016-5417?

Severity scoring for CVE-2016-5417 is pending analysis. The EPSS model estimates a 3.36% probability of exploitation in the next 30 days.

How do I fix CVE-2016-5417?

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-2016-5417?

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

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Source: NVD / NIST