USN-4745-1

    Dashboard / Vulnerabilities / USN-4745-1

    USN-4745-1

    Published: 23 Feb 2021Last Modified: 1 Jun 2026

    Summary: openssl vulnerabilities

    Details: David Benjamin discovered that OpenSSL incorrectly handled comparing certificates containing a EDIPartyName name type. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2020-1971) Tavis Ormandy discovered that OpenSSL incorrectly handled parsing issuer fields. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2021-23841)

    Affected packages

    Package

    Name: openssl

    Purl: pkg:deb/ubuntu/openssl?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.1f-1ubuntu2.27+esm2

    Affected versions

    1.0.1e-3ubuntu1
    1.0.1e-4ubuntu1
    1.0.1e-4ubuntu2
    1.0.1e-4ubuntu3
    1.0.1e-4ubuntu4
    1.0.1f-1ubuntu1
    1.0.1f-1ubuntu2
    1.0.1f-1ubuntu2.1
    1.0.1f-1ubuntu2.2
    1.0.1f-1ubuntu2.3
    1.0.1f-1ubuntu2.4
    1.0.1f-1ubuntu2.5
    1.0.1f-1ubuntu2.7
    1.0.1f-1ubuntu2.8
    1.0.1f-1ubuntu2.11
    1.0.1f-1ubuntu2.12
    1.0.1f-1ubuntu2.15
    1.0.1f-1ubuntu2.16
    1.0.1f-1ubuntu2.17
    1.0.1f-1ubuntu2.18
    1.0.1f-1ubuntu2.19
    1.0.1f-1ubuntu2.20
    1.0.1f-1ubuntu2.21
    1.0.1f-1ubuntu2.22
    1.0.1f-1ubuntu2.23
    1.0.1f-1ubuntu2.24
    1.0.1f-1ubuntu2.25
    1.0.1f-1ubuntu2.26
    1.0.1f-1ubuntu2.27
    1.0.1f-1ubuntu2.27+esm1

    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-4745-1 | CVE-DB