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Fencer Intel
high 7.5

CVE-2016-3706 json

Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka glibc or libc6) allows rem…

published 2016-06-10 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-4727

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.9%
EPSS 5.9% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka glibc or libc6) allows remote attackers to cause a denial of service (crash) via vectors involving hostent conversion. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4458.

Patch / fix

  • gnu glibc 2.23
  • glibc Debian 14, Debian 13, Debian 12 2.22-8

debian advisories DEBIAN-CVE-2016-3706

  • glibc Ubuntu 16.04 LTS 2.23-0ubuntu6
  • eglibc Ubuntu 14.04 LTS 2.19-0ubuntu6.10

ubuntu advisories UBUNTU-CVE-2016-3706

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • glibc SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 2.11.3-17.102.1
  • glibc SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 2.19-38.2
  • glibc SLES for SAP 12, SLES 12, SLED 12 +1 more 2.19-22.16.2

suse advisories SUSE-SU-2016:2156-1SUSE-SU-2016:1733-1SUSE-SU-2016:1721-1

  • glibc openSUSE Tumbleweed 2.24-2.3

opensuse advisories openSUSE-SU-2024:10154-1

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-2016-3706 updated cvss 4.3

glibc: stack (frame) overflow in getaddrinfo() when called with AF_INET, AF_INET6 (incomplete fix for CVE-2013-4458)

  • Red Hat Enterprise Linux 5 glibc Red Hat Enterprise Linux 6 nscd, glibc, glibc-utils, glibc-common
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 compat-glibc Red Hat Enterprise Linux 6 compat-glibc Red Hat Enterprise Linux 7 nscd, glibc, glibc-utils, compat-glibc, glibc-common
    not affected: vulnerable code not present

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

Exploit prediction

5.93% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel 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.