Ubuntu Security Notice USN-4524-1

Ubuntu Security Notice USN-4524-1
September 21, 2020

tnef vulnerabilities

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

– Ubuntu 16.04 LTS


TNEF could be made to crash or write arbitrary files to the filesystem.

Software Description:
– tnef: Tool to unpack MIME application/ms-tnef attachments


Paul Dreik discovered that TNEF incorrectly handled filenames. If a user
were tricked into opening a specially crafted email attachment, an
attacker could possibly use this issue to write arbitrary files to the
filesystem or cause TNEF crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 16.04 LTS:
tnef 1.4.9-1+deb8u4build0.16.04.1

In general, a standard system update will make all the necessary changes.


Package Information: