SUSE-SU-2018:3553-1: moderate: Security update for python-cryptography

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for python-cryptography
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Announcement ID:    SUSE-SU-2018:3553-1
Rating:             moderate
References:         #1101820 
Cross-References:   CVE-2018-10903
Affected Products:
                    SUSE OpenStack Cloud Crowbar 8
                    SUSE OpenStack Cloud 8
                    HPE Helion Openstack 8
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   An update that fixes one vulnerability is now available.

Description:

   This update for python-cryptography fixes the following issues:

   - CVE-2018-10903: The finalize_with_tag API did not enforce a minimum tag
     length. If a user did not validate the input length prior to passing it
     to finalize_with_tag an attacker could craft an invalid payload with a
     shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance
     of passing the MAC check. GCM tag forgeries could have caused key
     leakage (bsc#1101820)


Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE OpenStack Cloud Crowbar 8:

      zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2018-2517=1

   - SUSE OpenStack Cloud 8:

      zypper in -t patch SUSE-OpenStack-Cloud-8-2018-2517=1

   - HPE Helion Openstack 8:

      zypper in -t patch HPE-Helion-OpenStack-8-2018-2517=1



Package List:

   - SUSE OpenStack Cloud Crowbar 8 (x86_64):

      python-cryptography-2.0.3-3.3.1
      python-cryptography-debuginfo-2.0.3-3.3.1
      python-cryptography-debugsource-2.0.3-3.3.1

   - SUSE OpenStack Cloud 8 (x86_64):

      python-cryptography-2.0.3-3.3.1
      python-cryptography-debuginfo-2.0.3-3.3.1
      python-cryptography-debugsource-2.0.3-3.3.1

   - HPE Helion Openstack 8 (x86_64):

      python-cryptography-2.0.3-3.3.1
      python-cryptography-debuginfo-2.0.3-3.3.1
      python-cryptography-debugsource-2.0.3-3.3.1


References:

   https://www.suse.com/security/cve/CVE-2018-10903.html
   https://bugzilla.suse.com/1101820