Improper Input Validation Affecting glibc package, versions <2.17-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
3.44% (88th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-GLIBC-18610818
  • published11 Aug 2026
  • disclosed5 Dec 2014

Introduced: 5 Dec 2014

CVE-2012-6656  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest glibc to version 2.17-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

iconvdata/ibm930.c in GNU C Library (aka glibc) before 2.16 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a multibyte character value of "0xffff" to the iconv function when converting IBM930 encoded data to UTF-8.

CVSS Base Scores

version 3.1