Debian: DSA-4614-1: sudo security update

    Date 01 Feb 2020
    685
    Posted By LinuxSecurity Advisories
    Joe Vennix discovered a stack-based buffer overflow vulnerability in sudo, a program designed to provide limited super user privileges to specific users, triggerable when configured with the "pwfeedback" option enabled. An unprivileged user can take advantage of this flaw to obtain
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4614-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    February 01, 2020                     https://www.debian.org/security/faq
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    Package        : sudo
    CVE ID         : CVE-2019-18634
    Debian Bug     : 950371
    
    Joe Vennix discovered a stack-based buffer overflow vulnerability in
    sudo, a program designed to provide limited super user privileges to
    specific users, triggerable when configured with the "pwfeedback" option
    enabled. An unprivileged user can take advantage of this flaw to obtain
    full root privileges.
    
    Details can be found in the upstream advisory at
    https://www.sudo.ws/alerts/pwfeedback.html .
    
    For the oldstable distribution (stretch), this problem has been fixed
    in version 1.8.19p1-2.1+deb9u2.
    
    For the stable distribution (buster), exploitation of the bug is
    prevented due to a change in EOF handling introduced in 1.8.26.
    
    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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