USN-4524-1

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    USN-4524-1

    Published: 21 Sept 2020Last Modified: 27 Apr 2026

    Summary: tnef vulnerabilities

    Details: Paul Dreik discovered that TNEF incorrectly handled filenames. If a user were tricked into opening a specially crafted email attachment, an attacker could possibly use this issue to write arbitrary files to the filesystem or cause TNEF crash, resulting in a denial of service. (CVE-2019-18849)

    References: https://ubuntu.com/security/notices/USN-4524-1, https://ubuntu.com/security/CVE-2019-18849

    Affected packages

    Package

    Name: tnef

    Purl: pkg:deb/ubuntu/[email protected]+deb8u4build0.16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.9-1+deb8u4build0.16.04.1

    Affected versions

    1.4.9-1
    1.4.9-1+deb8u2build0.16.04.1
    1.4.9-1+deb8u3build0.16.04.1

    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-4524-1 | CVE-DB