USN-3558-1: systemd vulnerabilities

Ubuntu Security Notice USN-3558-1

5th February, 2018

systemd vulnerabilities

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

  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in systemd.

Software description

  • systemd
    – system and service manager

Details

Karim Hossen & Thomas Imbert and Nelson William Gamazo Sanchez
independently discovered that systemd-resolved incorrectly handled certain
DNS responses. A remote attacker could possibly use this issue to cause
systemd to temporarily stop responding, resulting in a denial of service.
This issue only affected Ubuntu 16.04 LTS. (CVE-2017-15908)

It was discovered that systemd incorrectly handled automounted volumes. A
local attacker could possibly use this issue to cause applications to hang,
resulting in a denial of service. (CVE-2018-1049)

Update instructions

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

Ubuntu 16.04 LTS:
systemd

229-4ubuntu21.1
Ubuntu 14.04 LTS:
systemd

204-5ubuntu20.26

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

CVE-2017-15908,

CVE-2018-1049


Source From: ubuntu.com.
Original article title: USN-3558-1: systemd vulnerabilities.
This full article can be read at: USN-3558-1: systemd vulnerabilities.

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