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OpenAdvisories
High USN-5020-1 3 CVEs

ruby2.3, ruby2.5, ruby2.7 vulnerabilities

Published Jul 21, 2021 · Updated Jun 25, 2026

Summary

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-31799)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could possibly use this issue to conduct
port scans and service banner extractions. This issue only affected
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-31810)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could possibly use this issue to perform
machine-in-the-middle attackers to bypass the TLS protection.
(CVE-2021-32066)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS ruby2.5 2.5.1-1ubuntu1.10
Ubuntu · 20.04 LTS 20.04:LTS ruby2.7 2.7.0-5ubuntu1.5
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS ruby2.3 2.3.1-2~ubuntu16.04.16+esm1

Vulnerabilities 3

References

  • report
    https://ubuntu.com/security/CVE-2021-31799
  • report
    https://ubuntu.com/security/CVE-2021-31810
  • report
    https://ubuntu.com/security/CVE-2021-32066