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    Debian: DSA-4861-1: screen security update

    Date 20 Feb 2021
    241
    Posted By LinuxSecurity Advisories
    Felix Weinmann reported a flaw in the handling of combining characters in screen, a terminal multiplexer with VT100/ANSI terminal emulation, which can result in denial of service, or potentially the execution of arbitrary code via a specially crafted UTF-8 character sequence.
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4861-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    February 21, 2021                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : screen
    CVE ID         : CVE-2021-26937
    Debian Bug     : 982435
    
    Felix Weinmann reported a flaw in the handling of combining characters
    in screen, a terminal multiplexer with VT100/ANSI terminal emulation,
    which can result in denial of service, or potentially the execution of
    arbitrary code via a specially crafted UTF-8 character sequence.
    
    For the stable distribution (buster), this problem has been fixed in
    version 4.6.2-3+deb10u1.
    
    We recommend that you upgrade your screen packages.
    
    For the detailed security status of screen please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/screen
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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