USN-4304-1: Ceph vulnerability

17 March 2020

ceph vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.10
  • Ubuntu 18.04 LTS

Summary

Ceph could be made to stop responding if it received specially crafted network traffic.

Software Description

  • ceph - distributed storage and file system

Details

Or Friedman discovered that Ceph incorrectly handled disconnects. A remote authenticated attacker could possibly use this issue to cause Ceph to consume resources, leading to a denial of service.

Update instructions

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

Ubuntu 19.10
ceph - 14.2.4-0ubuntu0.19.10.2
ceph-base - 14.2.4-0ubuntu0.19.10.2
ceph-common - 14.2.4-0ubuntu0.19.10.2
Ubuntu 18.04 LTS
ceph - 12.2.12-0ubuntu0.18.04.5
ceph-base - 12.2.12-0ubuntu0.18.04.5
ceph-common - 12.2.12-0ubuntu0.18.04.5

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