CVE-2018-20835

    Dashboard / Vulnerabilities / CVE-2018-20835

    CVE-2018-20835

    Published: 30 Apr 2019Last Modified: 8 Jul 2026

    Summary:

    Details: A vulnerability was found in tar-fs before 1.16.2. An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content.

    References: https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2, https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f, https://hackerone.com/reports/344595

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -a35ce2fd1e91f11cf2eaf78f284c35ad214dbe04

    Affected versions

    v1.16.1
    v1.16.0

    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