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Servers and applications

CVE-2016-3706

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.

Severity
High 7.5
Published
10 Jun 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.23
Exploit chance
5.9% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
GNU C LibraryServers and applications · cpe:a:gnu:glibc
  • Every version before 2.23

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-3706
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-3706