USN-3094-1: Systemd vulnerability

Ubuntu Security Notice USN-3094-1

29th September, 2016

systemd vulnerability

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

  • Ubuntu 16.04 LTS

Summary

The system could be made unavailable under certain conditions.

Software description

  • systemd
    – system and service manager

Details

Andrew Ayer discovered that Systemd improperly handled zero-length
notification messages. A local unprivileged attacker could use
this to cause a denial of service (init crash leading to system
unavailability).

Update instructions

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

Ubuntu 16.04 LTS:
systemd

229-4ubuntu10

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

LP: 1628687

CVE-2016-6636

The OAuth authorization implementation in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3.0.5, and 3.4.x before 3.4.4; UAA BOSH before 11.5 and 12.x before 12.5; Elastic Runtime before 1.6.40, 1.7.x before 1.7.21, and 1.8.x before 1.8.1; and Ops Manager 1.7.x before 1.7.13 and 1.8.x before 1.8.1 mishandles redirect_uri subdomains, which allows remote attackers to obtain implicit access tokens via a modified subdomain.

CVE-2016-6637

Multiple cross-site request forgery (CSRF) vulnerabilities in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3.0.5, and 3.4.x before 3.4.4; UAA BOSH before 11.5 and 12.x before 12.5; Elastic Runtime before 1.6.40, 1.7.x before 1.7.21, and 1.8.x before 1.8.2; and Ops Manager 1.7.x before 1.7.13 and 1.8.x before 1.8.1 allow remote attackers to hijack the authentication of unspecified victims for requests that approve or deny a scope via a profile or authorize approval page.

CVE-2016-6651

The UAA /oauth/token endpoint in Pivotal Cloud Foundry (PCF) before 243; UAA 2.x before 2.7.4.8, 3.x before 3.3.0.6, and 3.4.x before 3.4.5; UAA BOSH before 11.7 and 12.x before 12.6; Elastic Runtime before 1.6.40, 1.7.x before 1.7.21, and 1.8.x before 1.8.2; and Ops Manager 1.7.x before 1.7.13 and 1.8.x before 1.8.1 allows remote authenticated users to gain privileges by leveraging possession of a token.