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    ArchLinux: 202009-2: ark: arbitrary filesystem access

    Date 09 Sep 2020
    143
    Posted By LinuxSecurity Advisories
    The package ark before version 20.08.0-2 is vulnerable to arbitrary filesystem access.
    Arch Linux Security Advisory ASA-202009-2
    =========================================
    
    Severity: High
    Date    : 2020-09-03
    CVE-ID  : CVE-2020-24654
    Package : ark
    Type    : arbitrary filesystem access
    Remote  : No
    Link    : https://security.archlinux.org/AVG-1216
    
    Summary
    =======
    
    The package ark before version 20.08.0-2 is vulnerable to arbitrary
    filesystem access.
    
    Resolution
    ==========
    
    Upgrade to 20.08.0-2.
    
    # pacman -Syu "ark>=20.08.0-2"
    
    The problem has been fixed upstream but no release is available yet.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    In KDE Ark before 20.08.1, a crafted TAR archive with symlinks can
    install files outside the extraction directory, as demonstrated by a
    write operation to a user's home directory.
    
    Impact
    ======
    
    An attacker can overwrite local files by tricking a legitimate user
    into extracting a specially crafted TAR archive.
    
    References
    ==========
    
    https://kde.org/info/security/advisory-20200827-1.txt
    https://invent.kde.org/utilities/ark/-/commit/8bf8c5ef07b0ac5e914d752681e470dea403a5bd
    https://security.archlinux.org/CVE-2020-24654
    

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