Debian: DSA-4543-1: sudo security update

    Date14 Oct 2019
    CategoryDebian
    983
    Posted ByLinuxSecurity Advisories
    Debian Large
    Joe Vennix discovered that sudo, a program designed to provide limited super user privileges to specific users, when configured to allow a user to run commands as an arbitrary user via the ALL keyword in a Runas specification, allows to run commands as root by specifying the user ID
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4543-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    October 14, 2019                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : sudo
    CVE ID         : CVE-2019-14287
    Debian Bug     : 942322
    
    Joe Vennix discovered that sudo, a program designed to provide limited
    super user privileges to specific users, when configured to allow a user
    to run commands as an arbitrary user via the ALL keyword in a Runas
    specification, allows to run commands as root by specifying the user ID
    - -1 or 4294967295. This could allow a user with sufficient sudo
    privileges to run commands as root even if the Runas specification
    explicitly disallows root access.
    
    Details can be found in the upstream advisory at
    https://www.sudo.ws/alerts/minus_1_uid.html .
    
    For the oldstable distribution (stretch), this problem has been fixed
    in version 1.8.19p1-2.1+deb9u1.
    
    For the stable distribution (buster), this problem has been fixed in
    version 1.8.27-1+deb10u1.
    
    We recommend that you upgrade your sudo packages.
    
    For the detailed security status of sudo please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/sudo
    
    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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