Debian: DSA-4322-1: libssh security update

    Date17 Oct 2018
    CategoryDebian
    6536
    Posted ByAnthony Pell
    Peter Winter-Smith of NCC Group discovered that libssh, a tiny C SSH library, contains an authentication bypass vulnerability in the server code. An attacker can take advantage of this flaw to successfully authenticate without any credentials by presenting the server an
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4322-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    October 17, 2018                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : libssh
    CVE ID         : CVE-2018-10933
    Debian Bug     : 911149
    
    Peter Winter-Smith of NCC Group discovered that libssh, a tiny C SSH
    library, contains an authentication bypass vulnerability in the server
    code. An attacker can take advantage of this flaw to successfully
    authenticate without any credentials by presenting the server an
    SSH2_MSG_USERAUTH_SUCCESS message in place of the
    SSH2_MSG_USERAUTH_REQUEST message which the server would expect to
    initiate authentication.
    
    For the stable distribution (stretch), this problem has been fixed in
    version 0.7.3-2+deb9u1.
    
    We recommend that you upgrade your libssh packages.
    
    For the detailed security status of libssh please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/libssh
    
    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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