GHSA-v5h6-c2hv-hv3r

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Source
https://github.com/advisories/GHSA-v5h6-c2hv-hv3r
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/03/GHSA-v5h6-c2hv-hv3r/GHSA-v5h6-c2hv-hv3r.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-v5h6-c2hv-hv3r
Aliases
Related
Published
2024-03-25T19:36:52Z
Modified
2024-09-11T06:13:11.450452Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
StringIO buffer overread vulnerability
Details

An issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4.

The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value.

This vulnerability is not affected StringIO 3.0.3 and later, and Ruby 3.2.x and later.

We recommend to update the StringIO gem to version 3.0.3 or later. In order to ensure compatibility with bundled version in older Ruby series, you may update as follows instead:

  • For Ruby 3.0 users: Update to stringio 3.0.1.1
  • For Ruby 3.1 users: Update to stringio 3.1.0.2

You can use gem update stringio to update it. If you are using bundler, please add gem "stringio", ">= 3.0.1.2" to your Gemfile.

References

Affected packages

RubyGems / stringio

Package

Name
stringio
Purl
pkg:gem/stringio

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.1.1

Affected versions

0.*

0.0.1
0.0.2
0.1.0
0.1.3
0.1.4

3.*

3.0.0
3.0.1