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CVE-2013-4458

Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in GNU C Library (aka glibc or libc6) 2.18 and earlier allows remote attackers to cause a denial of service (crash) via a (1) hostname or (2) IP address that triggers a large number of AF_INET6 address results. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1914.

Severity
Medium 5.0
Published
12 Dec 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
4.2% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
GNU C LibraryServers and applications · cpe:a:gnu:glibc
  • Version 2.17
  • Version 2.16
  • Version 2.15
  • Version 2.14.1
All 27 release lines
  • Every version up to 2.18
  • Version 2.0
  • Version 2.0.1
  • Version 2.0.2
  • Version 2.0.3
  • Version 2.0.4
  • Version 2.0.5
  • Version 2.0.6
  • Version 2.1
  • Version 2.1.1
  • Version 2.1.1.6
  • Version 2.1.2
  • Version 2.1.3
  • Version 2.1.9
  • Version 2.10.1
  • Version 2.11
  • Version 2.11.1
  • Version 2.11.2
  • Version 2.11.3
  • Version 2.12.1
  • Version 2.12.2
  • Version 2.13
  • Version 2.14
  • Version 2.14.1
  • Version 2.15
  • Version 2.16
  • Version 2.17

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-4458
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-4458