ArchLinux: 201907-1: irssi: arbitrary code execution

    Date09 Jul 2019
    CategoryArchLinux
    885
    Posted ByLinuxSecurity Advisories
    The package irssi before version 1.2.1-1 is vulnerable to arbitrary code execution.
    Arch Linux Security Advisory ASA-201907-1
    =========================================
    
    Severity: High
    Date    : 2019-07-01
    CVE-ID  : CVE-2019-13045
    Package : irssi
    Type    : arbitrary code execution
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-999
    
    Summary
    =======
    
    The package irssi before version 1.2.1-1 is vulnerable to arbitrary
    code execution.
    
    Resolution
    ==========
    
    Upgrade to 1.2.1-1.
    
    # pacman -Syu "irssi>=1.2.1-1"
    
    The problem has been fixed upstream in version 1.2.1.
    
    Workaround
    ==========
    
    Disable SASL authentication.
    
    Description
    ===========
    
    Irssi 1.0.x before 1.0.8, 1.1.x before 1.1.3, and 1.2.x before 1.2.1,
    when SASL is enabled, has a use after free when sending SASL login to
    the server.
    
    Impact
    ======
    
    A remote attacker in position of man-in-the-middle or controlling the
    IRC server might be able to crash or execute arbitrary code on an
    affected host.
    
    References
    ==========
    
    https://irssi.org/security/irssi_sa_2019_06.txt
    https://www.openwall.com/lists/oss-security/2019/06/29/1
    https://github.com/irssi/irssi/commit/d23b0d22cc611e43c88d99192a59f413f951a955
    https://security.archlinux.org/CVE-2019-13045
    
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