UBUNTU-CVE-2019-18849

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    UBUNTU-CVE-2019-18849

    Published: 11 Nov 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2019-18849
    Aliases:
    USN-4524-1

    Summary:

    Details: In tnef before 1.4.18, an attacker may be able to write to the victim's .ssh/authorized_keys file via an e-mail message with a crafted winmail.dat application/ms-tnef attachment, because of a heap-based buffer over-read involving strdup.

    References: https://ubuntu.com/security/CVE-2019-18849, https://github.com/verdammelt/tnef/pull/40, https://github.com/verdammelt/tnef/compare/1.4.17...1.4.18, https://ubuntu.com/security/notices/USN-4524-1, https://www.cve.org/CVERecord?id=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
    UBUNTU-CVE-2019-18849 | CVE-DB