USN-4035-1: Ceph vulnerabilities
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
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-4035-1: Ceph vulnerabilities
