ArchLinux: 201906-8: vim: arbitrary code execution

    Date13 Jun 2019
    CategoryArchLinux
    320
    Posted ByLinuxSecurity Advisories
    The package vim before version 8.1.1467-1 is vulnerable to arbitrary code execution.
    Arch Linux Security Advisory ASA-201906-8
    =========================================
    
    Severity: High
    Date    : 2019-06-11
    CVE-ID  : CVE-2019-12735
    Package : vim
    Type    : arbitrary code execution
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-975
    
    Summary
    =======
    
    The package vim before version 8.1.1467-1 is vulnerable to arbitrary
    code execution.
    
    Resolution
    ==========
    
    Upgrade to 8.1.1467-1.
    
    # pacman -Syu "vim>=8.1.1467-1"
    
    The problem has been fixed upstream in version 8.1.1467.
    
    Workaround
    ==========
    
    Disable modeline support in the vimrc file by setting:
    
        set nomodeline
    
    Description
    ===========
    
    getchar.c in Vim before 8.1.1365 and Neovim before 0.3.6 allows remote
    attackers to execute arbitrary OS commands via the :source! command in
    a modeline, as demonstrated by execute in Vim, and assert_fails or
    nvim_input in Neovim.
    
    Impact
    ======
    
    A remote attacker could execute code with a maliciously written file.
    
    References
    ==========
    
    https://github.com/vim/vim/commit/53575521406739cf20bbe4e384d88e7dca11f040
    https://security.archlinux.org/CVE-2019-12735
    
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