Security update for sles11sp4-docker-image

SUSE Security Update: Security update for sles11sp4-docker-image
Announcement ID: SUSE-SU-2016:0778-1
Rating: important
References: #969591
Affected Products:
  • SUSE Linux Enterprise Module for Containers 12

  • An update that fixes 16 vulnerabilities is now available.


    This rebuild for sles11sp4-docker-image fixes several important security
    issues done in libraries contained inside, for glibc, openssl, curl and

    glibc security fixes:

    - CVE-2015-7547: A stack-based buffer overflow in getaddrinfo allowed
    remote attackers to cause a crash or execute arbitrary code via crafted
    and timed DNS responses (bsc#961721)
    - CVE-2015-8777: Insufficient checking of LD_POINTER_GUARD environment
    variable allowed local attackers to bypass the pointer guarding
    protection of the dynamic loader on set-user-ID and set-group-ID
    programs (bsc#950944)
    - CVE-2015-8776: Out-of-range time values passed to the strftime function
    may cause it to crash, leading to a denial of service, or potentially
    disclosure information (bsc#962736)
    - CVE-2015-8778: Integer overflow in hcreate and hcreate_r could have
    caused an out-of-bound memory access. leading to application crashes or,
    potentially, arbitrary code execution (bsc#962737)
    - CVE-2014-9761: A stack overflow (unbounded alloca) could have caused
    applications which process long strings with the nan function to crash
    or, potentially, execute arbitrary code. (bsc#962738)
    - CVE-2015-8779: A stack overflow (unbounded alloca) in the catopen
    function could have caused applications which pass long strings to the
    catopen function to crash or, potentially execute arbitrary code.

    glibc non-security bugfixes:

    - bsc#930721: Accept leading and trailing spaces in getdate input string
    - bsc#942317: Recognize power8 platform
    - bsc#950944: Always enable pointer guard
    - bsc#956988: Fix deadlock in __dl_iterate_phdr

    openssl security issues fixed:

    - CVE-2016-0800 aka the "DROWN" attack (bsc#968046): OpenSSL was
    vulnerable to a cross-protocol attack that could lead to decryption of
    TLS sessions by using a server supporting SSLv2 and EXPORT cipher suites
    as a Bleichenbacher RSA padding oracle.

    This update changes the openssl library to:

    * Disable SSLv2 protocol support by default.

    This can be overridden by setting the environment variable
    "OPENSSL_ALLOW_SSL2" or by using SSL_CTX_clear_options using the
    SSL_OP_NO_SSLv2 flag.

    Note that various services and clients had already disabled SSL
    protocol 2 by default previously.

    * Disable all weak EXPORT ciphers by default. These can be reenabled if
    required by old legacy software using the environment variable

    - CVE-2016-0705 (bnc#968047): A double free() bug in the DSA ASN1 parser
    code was fixed that could be abused to facilitate a denial-of-service

    - CVE-2016-0797 (bnc#968048): The BN_hex2bn() and BN_dec2bn() functions
    had a bug that could result in an attempt to de-reference a NULL pointer
    leading to crashes. This could have security consequences if these
    functions were ever called by user applications with large untrusted
    hex/decimal data. Also, internal usage of these functions in OpenSSL
    uses data from config files
    or application command line arguments. If user developed applications
    generated config file data based on untrusted data, then this could
    have had security consequences as well.

    - CVE-2016-0799 (bnc#968374) On many 64 bit systems, the internal fmtstr()
    and doapr_outch() functions could miscalculate the length of a string
    and attempt to access out-of-bounds memory locations. These problems
    could have enabled attacks where large amounts of untrusted data is
    passed to the BIO_*printf functions. If applications use these functions
    in this way then they could have been vulnerable. OpenSSL itself uses
    these functions when printing out human-readable dumps of ASN.1 data.
    Therefore applications that print this data could have been vulnerable
    if the data is from untrusted sources. OpenSSL command line applications
    could also have been vulnerable when they print out ASN.1 data, or if
    untrusted data is passed as command line arguments. Libssl is not
    considered directly vulnerable.

    - CVE-2015-3197 (bsc#963415): The SSLv2 protocol did not block disabled

    Note that the March 1st 2016 release also references following CVEs that
    were fixed by us with CVE-2015-0293 in 2015:

    - CVE-2016-0703 (bsc#968051): This issue only affected versions of OpenSSL
    prior to March 19th 2015 at which time the code was refactored to
    address vulnerability CVE-2015-0293. It would have made the above
    "DROWN" attack much easier.
    - CVE-2016-0704 (bsc#968053): "Bleichenbacher oracle in SSLv2" This issue
    only affected versions of OpenSSL prior to March 19th 2015 at which time
    the code was refactored to address vulnerability CVE-2015-0293. It would
    have made the above "DROWN" attack much easier.

    openssl non-security bugs fixed:

    - Avoid running OPENSSL_config twice. This avoids breaking engine loading
    and also fixes a memory leak in libssl. (bsc#952871 bsc#967787)

    curl security issues fixed:

    - CVE-2016-0755: libcurl would reuse NTLM-authenticated proxy connections
    without properly making sure that the connection was authenticated with
    the same credentials as set for this transfer (bsc#962983)

    curl non-security bugs fixed:
    - bsc#926511: Check for errors on the control connection during FTP

    openldap2 security issue fixed:

    - CVE-2015-6908. Passing a crafted packet to the function ber_get_next(),
    an attacker may cause a remote denial of service, crashing the OpenLDAP
    server (bsc#945582).

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Module for Containers 12:
      zypper in -t patch SUSE-SLE-Module-Containers-12-2016-457=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Linux Enterprise Module for Containers 12 (x86_64):
      • sles11sp4-docker-image-1.1.1-20160304104123
    • SUSE Linux Enterprise Module for Containers 12 (s390x):
      • sles11sp4-docker-image-1.1.1-20160304104143