1. Ubuntu Security Notices
  2. USN-3288-1

USN-3288-1: libytnef vulnerabilities

Publication date

15 May 2017

Overview

libytnef could be made to crash or run programs as your login if it opened a specially crafted file.

Releases

Packages

  • libytnef - improved decoder for application/ms-tnef attachments

Details

It was discovered that libytnef incorrectly handled malformed TNEF streams.
If a user were tricked into opening a specially crafted TNEF attachment, an
attacker could cause a denial of service or possibly execute arbitrary
code.

It was discovered that libytnef incorrectly handled malformed TNEF streams.
If a user were tricked into opening a specially crafted TNEF attachment, an
attacker could cause a denial of service or possibly execute arbitrary
code.

Update instructions

After a standard system update you need to restart applications using libytnef, such as Evolution, to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty libytnef0 –  1.5-6ubuntu0.1

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References

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