USN-6663-1

    Dashboard / Vulnerabilities / USN-6663-1

    USN-6663-1

    Published: 27 Feb 2024Last Modified: 22 Apr 2026

    Summary: openssl update

    Details: As a security improvement, OpenSSL will now return deterministic random bytes instead of an error when detecting wrong padding in PKCS#1 v1.5 RSA to prevent its use in possible Bleichenbacher timing attacks.

    References: https://ubuntu.com/security/notices/USN-6663-1, https://launchpad.net/bugs/2054090

    Affected packages

    Package

    Name: openssl

    Purl: pkg:deb/ubuntu/[email protected]~18.04.23+esm5?arch=source&distro=esm-infra/bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.1.1-1ubuntu2.1~18.04.23+esm5

    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
    USN-6663-1 | CVE-DB