USN-3288-1: libytnef vulnerabilities

15 May 2017

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.

Update instructions

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

Ubuntu 14.04

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

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