UBUNTU-CVE-2023-27539

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    UBUNTU-CVE-2023-27539

    Published: 22 Mar 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-27539

    Summary:

    Details: There is a denial of service vulnerability in the header parsing component of Rack.

    References: https://ubuntu.com/security/CVE-2023-27539, https://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466, https://ubuntu.com/security/notices/USN-6689-1, https://www.cve.org/CVERecord?id=CVE-2023-27539, https://ubuntu.com/security/notices/USN-6905-1, https://ubuntu.com/security/notices/USN-7036-1

    Affected packages

    Package

    Name: ruby-rack

    Purl: pkg:deb/ubuntu/[email protected]+deb8u3ubuntu1~esm7?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.5.2-3+deb8u3ubuntu1~esm7

    Affected versions

    1.5.2-1
    1.5.2-1ubuntu0.1~esm1
    1.5.2-3+deb8u3ubuntu1~esm2
    1.5.2-3+deb8u3ubuntu1~esm3
    1.5.2-3+deb8u3ubuntu1~esm4
    1.5.2-3+deb8u3ubuntu1~esm6

    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