USN-4035-1: Ceph vulnerabilities

Publication date

25 June 2019

Overview

Several security issues were fixed in Ceph.


Packages

  • 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...

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

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:


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