[OpenPKG-SA-2003.028] OpenPKG Security Advisory (samba)

From: OpenPKG (openpkgat_private)
Date: Mon Apr 07 2003 - 09:05:27 PDT

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    ________________________________________________________________________
    
    OpenPKG Security Advisory                            The OpenPKG Project
    http://www.openpkg.org/security.html              http://www.openpkg.org
    openpkg-securityat_private                         openpkgat_private
    OpenPKG-SA-2003.028                                          07-Apr-2003
    ________________________________________________________________________
    
    Package:             samba
    Vulnerability:       remote root exploit
    OpenPKG Specific:    no
    
    Affected Releases:   Affected Packages:          Corrected Packages:
    OpenPKG CURRENT      <= samba-2.2.8-20030405     >= samba-2.2.8a-20030407
    OpenPKG 1.2          <= samba-2.2.7a-1.2.1       >= samba-2.2.7a-1.2.2
    OpenPKG 1.1          <= samba-2.2.5-1.1.2        >= samba-2.2.5-1.1.3
    
    Dependent Packages:  none
    
    Description:
      Digital Defense Inc. has discovered [1] a buffer overflow
      vulnerability in the Samba SMB/CIFS server [0]. An intruder
      exploiting this vulnerability could gain root access on the affected
      host system. An active exploit is publically available [2]. The
      Common Vulnerabilities and Exposures (CVE) project assigned the id
      CAN-2003-0201 [3] to the problem.
    
      Additional buffer overflows were detected by an internal code
      audit by the Samba team in response to the original report. The
      Common Vulnerabilities and Exposures (CVE) project assigned the id
      CAN-2003-0196 [4] to these additional problems.
    
      Please check whether you are affected by running "<prefix>/bin/rpm -q
      samba". If you have the "samba" package installed and its version is
      affected (see above), we recommend that you immediately upgrade it
      (see Solution). [5][6]
    
    Solution:
      Select the updated source RPM appropriate for your OpenPKG release
      [7][8], fetch it from the OpenPKG FTP service [9][10] or a mirror
      location, verify its integrity [11], build a corresponding binary RPM
      from it [5] and update your OpenPKG installation by applying the
      binary RPM [6]. For the current release OpenPKG 1.2, perform the
      following operations to permanently fix the security problem (for
      other releases adjust accordingly).
    
      $ ftp ftp.openpkg.org
      ftp> bin
      ftp> cd release/1.2/UPD
      ftp> get samba-2.2.7a-1.2.2.src.rpm
      ftp> bye
      $ <prefix>/bin/rpm -v --checksig samba-2.2.7a-1.2.2.src.rpm
      $ <prefix>/bin/rpm --rebuild samba-2.2.7a-1.2.2.src.rpm
      $ su -
      # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/samba-2.2.7a-1.2.2.*.rpm
    ________________________________________________________________________
    
    References:
      [0]  http://www.samba.org/
      [1]  http://www.digitaldefense.net/labs/advisories/DDI-1013.txt
      [2]  http://www.digitaldefense.net/labs/tools/trans2root.pl
      [3]  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0201
      [4]  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0196
      [5]  http://www.openpkg.org/tutorial.html#regular-source
      [6]  http://www.openpkg.org/tutorial.html#regular-binary
      [7]  ftp://ftp.openpkg.org/release/1.1/UPD/samba-2.2.5-1.1.3.src.rpm
      [8]  ftp://ftp.openpkg.org/release/1.2/UPD/samba-2.2.7a-1.2.2.src.rpm
      [9]  ftp://ftp.openpkg.org/release/1.1/UPD/
      [10] ftp://ftp.openpkg.org/release/1.2/UPD/
      [11] http://www.openpkg.org/security.html#signature
    ________________________________________________________________________
    
    For security reasons, this advisory was digitally signed with the
    OpenPGP public key "OpenPKG <openpkgat_private>" (ID 63C4CB9F) of the
    OpenPKG project which you can retrieve from http://pgp.openpkg.org and
    hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
    for details on how to verify the integrity of this advisory.
    ________________________________________________________________________
    
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