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Fencer Vulns
medium 5.3

CVE-2016-10739 json

In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 a…

published 2019-01-21 7 y ago modified 2026-10-14 26 d ago also EUVD-2016-1736

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 address followed by whitespace and arbitrary characters, which could lead applications to incorrectly assume that it had parsed a valid string, without the possibility of embedded HTTP headers or other potentially dangerous substrings.

Patch / fix

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • glibc Debian 14, Debian 13, Debian 12 2.28-6

debian advisories DEBIAN-CVE-2016-10739

  • glibc RHEL 8 2.28-72.el8
  • nscd RHEL 8 2.28-72.el8
  • libnsl RHEL 8 2.28-72.el8
  • nss_db RHEL 8 2.28-72.el8
  • nss_hesiod RHEL 8 2.28-72.el8
  • glibc-utils RHEL 8 2.28-72.el8
  • glibc-common RHEL 8 2.28-72.el8
  • glibc-benchtests RHEL 8 2.28-72.el8

red hat advisories RHSA-2019:3513RHSA-2019:2118

  • glibc SLES 12 SP3-BCL, SLES 12 SP2-BCL 2.22-133.1
  • glibc SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 +1 more 2.22-100.8.1
  • glibc SLE Module for Development Tools 15, SLE Module for Basesystem 15 2.26-13.19.1

suse advisories SUSE-SU-2023:0015-1SUSE-SU-2019:1102-1SUSE-SU-2019:0903-1

  • glibc openSUSE Tumbleweed 2.34-1.2
  • glibc openSUSE Leap 15.0 2.26-lp150.11.17.1
  • glibc-testsuite-src openSUSE Leap 15.0 2.26-lp150.11.17.1

opensuse advisories openSUSE-SU-2024:10792-1openSUSE-SU-2019:1250-1

  • glibc Arch Linux 2.29-1

arch linux advisories AVG-1984

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-10739 updated cvss 4.6

glibc: getaddrinfo should reject IP addresses with trailing characters

  • Red Hat Enterprise Linux 5 glibc Red Hat Enterprise Linux 6 nscd, glibc, glibc-utils, glibc-common
    affected: no fix planned “Out of support scope”
  • Red Hat Ansible Tower 3.4 for RHEL 7 Server ansible-tower-34/ansible-tower-memcached 1.4.15-28, ansible-tower-35/ansible-tower-memcached 1.4.15-28, ansible-tower-37/ansible-tower-memcached-rhel7 1.4.15-28
    fixed: vendor fix RHBA-2020:0547
  • Red Hat CodeReady Linux Builder (v. 8) nss_hesiod 2.28-72.el8, glibc-benchtests 2.28-72.el8, glibc-debuginfo-common 2.28-72.el8 Red Hat Enterprise Linux AppStream (v. 8) glibc-utils 2.28-72.el8, glibc-debuginfo-common 2.28-72.el8, compat-libpthread-nonshared 2.28-72.el8 Red Hat Enterprise Linux BaseOS (v. 8) nscd 2.28-72.el8, glibc 2.28-72.el8, libnsl 2.28-72.el8, nss_db 2.28-72.el8, glibc-common 2.28-72.el8, glibc-all-langpacks 2.28-72.el8, +3 more
    fixed: vendor fix RHSA-2019:3513
  • Red Hat Enterprise Linux Client (v. 7) nscd 2.17-292.el7, glibc 2.17-292.el7, glibc-utils 2.17-292.el7, glibc-common 2.17-292.el7, glibc-debuginfo-common 2.17-292.el7 Red Hat Enterprise Linux Client Optional (v. 7) glibc-debuginfo-common 2.17-292.el7 Red Hat Enterprise Linux ComputeNode (v. 7) nscd 2.17-292.el7, glibc 2.17-292.el7, glibc-utils 2.17-292.el7, glibc-common 2.17-292.el7, glibc-debuginfo-common 2.17-292.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-debuginfo-common 2.17-292.el7 Red Hat Enterprise Linux Server (v. 7) nscd 2.17-292.el7, glibc 2.17-292.el7, glibc-utils 2.17-292.el7, glibc-common 2.17-292.el7, glibc-debuginfo-common 2.17-292.el7 Red Hat Enterprise Linux Server Optional (v. 7) glibc-debuginfo-common 2.17-292.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) nscd 2.17-292.el7, glibc 2.17-292.el7, glibc-utils 2.17-292.el7, glibc-common 2.17-292.el7, glibc-debuginfo-common 2.17-292.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-debuginfo-common 2.17-292.el7
    fixed: vendor fix RHSA-2019:2118

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-348-10 updated cvss 5.3

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.