Ubuntu 4035-1: Ceph vulnerabilities

    Date25 Jun 2019
    CategoryUbuntu
    1675
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Ceph.
    ==========================================================================
    Ubuntu Security Notice USN-4035-1
    June 25, 2019
    
    ceph vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.04
    - Ubuntu 18.10
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Ceph.
    
    Software Description:
    - ceph: distributed storage and file system
    
    Details:
    
    It was discovered that Ceph incorrectly handled read only permissions. An
    authenticated attacker could use this issue to obtain dm-crypt encryption
    keys. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-14662)
    
    It was discovered that Ceph incorrectly handled certain OMAPs holding
    bucket indices. An authenticated attacker could possibly use this issue to
    cause a denial of service. This issue only affected Ubuntu 16.04 LTS.
    (CVE-2018-16846)
    
    It was discovered that Ceph incorrectly sanitized certain debug logs. A
    local attacker could possibly use this issue to obtain encryption key
    information. This issue was only addressed in Ubuntu 18.10 and Ubuntu
    19.04. (CVE-2018-16889)
    
    It was discovered that Ceph incorrectly handled certain civetweb requests.
    A remote attacker could possibly use this issue to consume resources,
    leading to a denial of service. This issue only affected Ubuntu 18.10 and
    Ubuntu 19.04. (CVE-2019-3821)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.04:
      ceph                            13.2.4+dfsg1-0ubuntu2.1
      ceph-common                     13.2.4+dfsg1-0ubuntu2.1
    
    Ubuntu 18.10:
      ceph                            13.2.4+dfsg1-0ubuntu0.18.10.2
      ceph-common                     13.2.4+dfsg1-0ubuntu0.18.10.2
    
    Ubuntu 16.04 LTS:
      ceph                            10.2.11-0ubuntu0.16.04.2
      ceph-common                     10.2.11-0ubuntu0.16.04.2
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4035-1
      CVE-2018-14662, CVE-2018-16846, CVE-2018-16889, CVE-2019-3821
    
    Package Information:
      https://launchpad.net/ubuntu/+source/ceph/13.2.4+dfsg1-0ubuntu2.1
      https://launchpad.net/ubuntu/+source/ceph/13.2.4+dfsg1-0ubuntu0.18.10.2
      https://launchpad.net/ubuntu/+source/ceph/10.2.11-0ubuntu0.16.04.2
    
    
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