[USN-4524-1] TNEF vulnerabilities
avital.ostromich at canonical.com
Mon Sep 21 23:15:28 UTC 2020
Ubuntu Security Notice USN-4524-1
September 21, 2020
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.
- 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.
The problem can be corrected by updating your system to the following
Ubuntu 16.04 LTS:
In general, a standard system update will make all the necessary changes.
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