Integer Overflow or Wraparound Affecting mruby package, versions <2.0.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.35% (71st percentile)

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  • Snyk IDSNYK-ECHOLATEST-MRUBY-19698261
  • published12 Sept 2026
  • disclosed17 Jul 2018

Introduced: 17 Jul 2018

CVE-2018-14337  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Echo:latest mruby to version 2.0.0-1 or higher.

NVD Description

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

The CHECK macro in mrbgems/mruby-sprintf/src/sprintf.c in mruby 1.4.1 contains a signed integer overflow, possibly leading to out-of-bounds memory access because the mrb_str_resize function in string.c does not check for a negative length.

CVSS Base Scores

version 3.1