NULL Pointer Dereference Affecting mruby/mruby package, versions [,3.2.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-UNMANAGED-MRUBYMRUBY-5498632
  • published8 May 2023
  • disclosed8 May 2023
  • creditoctaviogalland

Introduced: 8 May 2023

CVE-2022-0326  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade mruby/mruby to version 3.2.0 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference in iv_free.

PoC

6.times{3.times{%]#{{}until-break
b={}
[**0,m:0]
s=0}]}}

References

CVSS Scores

version 3.1