UBUNTU-CVE-2022-28739

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    UBUNTU-CVE-2022-28739

    Published: 9 May 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2022-28739

    Summary:

    Details: There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.

    References: https://ubuntu.com/security/CVE-2022-28739, https://github.com/ruby/ruby/commit/69f9992ed41920389d4185141a14f02f89a4d306, https://github.com/ruby/ruby/commit/c9c2245c0a25176072e02db9254f0e0c84c805cd, https://github.com/ruby/ruby/commit/3fa771ddedac25560be57f4055f1767e6c810f58, https://github.com/ruby/ruby/commit/8d142ecff9af7d60728b8cfa9138e8623985c428, https://www.ruby-lang.org/en/news/2022/04/12/buffer-overrun-in-string-to-float-cve-2022-28739/, https://access.redhat.com/security/cve/CVE-2022-28739, https://ubuntu.com/security/notices/USN-5462-2, https://ubuntu.com/security/notices/USN-5462-1, https://www.cve.org/CVERecord?id=CVE-2022-28739

    Affected packages

    Package

    Name: ruby2.3

    Purl: pkg:deb/ubuntu/[email protected]~ubuntu16.04.16+esm3?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.3.1-2~ubuntu16.04.16+esm3

    Affected versions

    2.3.0-1
    2.3.0-2
    2.3.0-4ubuntu2
    2.3.0-4ubuntu3
    2.3.0-5ubuntu1
    2.3.1-2~16.04
    2.3.1-2~16.04.2
    2.3.1-2~16.04.4
    2.3.1-2~16.04.5
    2.3.1-2~16.04.6
    2.3.1-2~16.04.7
    2.3.1-2~16.04.9
    2.3.1-2~16.04.10
    2.3.1-2~16.04.11
    2.3.1-2~16.04.12
    2.3.1-2~ubuntu16.04.13
    2.3.1-2~ubuntu16.04.14
    2.3.1-2~ubuntu16.04.15
    2.3.1-2~ubuntu16.04.16
    2.3.1-2~ubuntu16.04.16+esm1
    2.3.1-2~ubuntu16.04.16+esm2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2022-28739 | CVE-DB