UBUNTU-CVE-2018-0735

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    UBUNTU-CVE-2018-0735

    Published: 29 Oct 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-0735
    Aliases:
    USN-3840-1

    Summary:

    Details: The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).

    References: https://ubuntu.com/security/CVE-2018-0735, https://www.openssl.org/news/secadv/20181029.txt, https://ubuntu.com/security/notices/USN-3840-1, https://www.cve.org/CVERecord?id=CVE-2018-0735

    Affected packages

    Package

    Name: openssl

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.1.0g-2ubuntu4.3

    Affected versions

    1.0.2g-1ubuntu13
    1.0.2g-1ubuntu14
    1.0.2n-1ubuntu1

    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-2018-0735 | CVE-DB