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Ubuntu Security Notice USN-3952-1

Ubuntu Security Notice USN-3952-1
Posted Apr 23, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3952-1 - Jan Pokorný discovered that Pacemaker incorrectly handled client-server authentication. A local attacker could possibly use this issue to escalate privileges. Jan Pokorný discovered that Pacemaker incorrectly handled certain verifications. A local attacker could possibly use this issue to cause a denial of service. Jan Pokorný discovered that Pacemaker incorrectly handled certain memory operations. A local attacker could possibly use this issue to obtain sensitive information in log outputs. This issue only applied to Ubuntu 18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2018-16877, CVE-2018-16878, CVE-2019-3885
MD5 | 6d6606b6866df85302940916894d495a

Ubuntu Security Notice USN-3952-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3952-1
April 23, 2019

pacemaker vulnerabilities
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Pacemaker.

Software Description:
- pacemaker: Cluster resource manager

Details:

Jan Pokorný discovered that Pacemaker incorrectly handled client-server
authentication. A local attacker could possibly use this issue to escalate
privileges. (CVE-2018-16877)

Jan Pokorný discovered that Pacemaker incorrectly handled certain
verifications. A local attacker could possibly use this issue to cause a
denial of service. (CVE-2018-16878)

Jan Pokorný discovered that Pacemaker incorrectly handled certain memory
operations. A local attacker could possibly use this issue to obtain
sensitive information in log outputs. This issue only applied to Ubuntu
18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. (CVE-2019-3885)

Update instructions:

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

Ubuntu 19.04:
pacemaker 1.1.18-2ubuntu1.19.04.1

Ubuntu 18.10:
pacemaker 1.1.18-2ubuntu1.18.10.1

Ubuntu 18.04 LTS:
pacemaker 1.1.18-0ubuntu1.1

Ubuntu 16.04 LTS:
pacemaker 1.1.14-2ubuntu1.6

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

References:
https://usn.ubuntu.com/usn/usn-3952-1
CVE-2018-16877, CVE-2018-16878, CVE-2019-3885

Package Information:
https://launchpad.net/ubuntu/+source/pacemaker/1.1.18-2ubuntu1.19.04.1
https://launchpad.net/ubuntu/+source/pacemaker/1.1.18-2ubuntu1.18.10.1
https://launchpad.net/ubuntu/+source/pacemaker/1.1.18-0ubuntu1.1
https://launchpad.net/ubuntu/+source/pacemaker/1.1.14-2ubuntu1.6

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