UBUNTU-CVE-2018-1000808

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    UBUNTU-CVE-2018-1000808

    Published: 8 Oct 2018Last Modified: 4 Feb 2026
    Aliases:
    USN-3813-1

    Summary:

    Details: Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.. This vulnerability appears to have been fixed in 17.5.0.

    References: https://ubuntu.com/security/CVE-2018-1000808, https://ubuntu.com/security/notices/USN-3813-1, https://www.cve.org/CVERecord?id=CVE-2018-1000808

    Affected packages

    Package

    Name: pyopenssl

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.15.1-2ubuntu0.2

    Affected versions

    0.15.1-2build1

    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