Integer Overflow or Wraparound Affecting ruby package, versions <2.7.5-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
1.1% (85th percentile)

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  • Snyk IDSNYK-ALPINE312-RUBY-1926163
  • published25 Nov 2021
  • disclosed6 Feb 2022

Introduced: 25 Nov 2021

CVE-2021-41816  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Alpine:3.12 ruby to version 2.7.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby package and not the ruby package as distributed by Alpine. See How to fix? for Alpine:3.12 relevant fixed versions and status.

CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.

CVSS Scores

version 3.1