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This bug was fixed in the package samba - 2:4.5.4+dfsg-1ubuntu1

---------------
samba (2:4.5.4+dfsg-1ubuntu1) zesty; urgency=medium

  * Merge from Debian unstable (LP: #1659707, LP: #1639962). Remaining
    changes:
    + debian/VERSION.patch: Update vendor string to "Ubuntu".
    + debian/smb.conf;
      - Add "(Samba, Ubuntu)" to server string.
      - Comment out the default [homes] share, and add a comment about "valid users = %s"
         to show users how to restrict access to \\server\username to only username.
    + debian/samba-common.config:
      - Do not change prioritiy to high if dhclient3 is installed.
    + Add apport hook:
      - Created debian/source_samba.py.
      - debian/rules, debia/samb-common-bin.install: install hook.
    + d/p/krb_zero_cursor.patch - apply proposed-upstream fix for
      pam_winbind krb5_ccache_type=FILE failure (LP #1310919)
    + debian/patches/winbind_trusted_domains.patch: make sure domain members
      can talk to trusted domains DCs.
      [ update patch based upon upstream discussion ]
    + d/p/fix-1584485.patch: Make libnss-winbind and libpam-winbind
      to be statically linked fixes LP #1584485.
    + d/rules: Compile winbindd/winbindd statically.
  * Drop:
    - Delete debian/.gitignore
    [ Previously undocumented ]
    - debian/patches/git_smbclient_cpu.patch:
      + backport upstream patch to fix smbclient users hanging/eating cpu on
        trying to contact a machine which is not there (lp #1572260)
    [ Fixed upstream ]
    - SECURITY UPDATE: remote code execution via heap overflow in NDR parsing
      + debian/patches/CVE-2016-2123.patch: check lengths in
        librpc/ndr/ndr_dnsp.c.
      + CVE-2016-2123
    [ Fixed in Debian ]
    - SECURITY UPDATE: unconditional privilege delegation to Kerberos servers
      + debian/patches/CVE-2016-2125.patch: don't use GSS_C_DELEG_FLAG in
        source4/scripting/bin/nsupdate-gss, source3/librpc/crypto/gse.c,
        source4/auth/gensec/gensec_gssapi.c.
      + CVE-2016-2125
    [ Fixed in Debian ]
    - SECURITY UPDATE: privilege elevation in Kerberos PAC validation
      + debian/patches/CVE-2016-2126.patch: only allow known checksum types
        in auth/kerberos/kerberos_pac.c.
      + CVE-2016-2126
    [ Fixed in Debian ]

 -- Nishanth Aravamudan <nish.aravamudan@xxxxxxxxxxxxx>  Thu, 26 Jan
2017 17:20:15 -0800

** Changed in: samba (Ubuntu)
       Status: Triaged => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-2123

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-2125

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-2126

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https://bugs.launchpad.net/bugs/1639962

Title:
  smbd crashed on startup with newest libtevent

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