USN-3341-1: Systemd vulnerability

USN-3341-1: Systemd vulnerability

Ubuntu Security Notice USN-3341-1

27th June, 2017

systemd vulnerability

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

  • Ubuntu 17.04
  • Ubuntu 16.10

Summary

systemd-resolved could be made to crash or run programs if it received
a specially crafted DNS response.

Software description

  • systemd
    – system and service manager

Details

An out-of-bounds write was discovered in systemd-resolved when handling
specially crafted DNS responses. A remote attacker could potentially
exploit this to cause a denial of service (daemon crash) or execute
arbitrary code. (CVE-2017-9445)

Update instructions

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

Ubuntu 17.04:
systemd

232-21ubuntu5
Ubuntu 16.10:
systemd

231-9ubuntu5

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-2017-9445,

LP: 1695546

Source: USN-3341-1: Systemd vulnerability

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