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Ubuntu 16.04 LTS: USN-4035-1 Critical: Ceph Security Issues

ubuntu
Calendar Grey June 25, 2019
Dist Ubuntu Esm H88
=========================================================================Ubuntu Security Notice USN-
Several security issues were fixed in Ceph.

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 ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service authentication issue local attack ubuntu ceph

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://ubuntu.com/security/notices/USN-4035-1

CVE-2018-14662, CVE-2018-16846, CVE-2018-16889, CVE-2019-3821

Severity
critical
Lowest
Low
Medium
High
Critical

June 25, 2019

Topics%20covered

Topics Covered

security advisory denial of service authentication issue local attack ubuntu ceph

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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