USN-4524-1: TNEF vulnerabilities

Releases

• Ubuntu 16.04 ESM

Packages

• tnef - Tool to unpack MIME application/ms-tnef attachments

Details

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.
(CVE-2019-18849)

Update instructions

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

Ubuntu 16.04

• tnef - 1.4.9-1+deb8u4build0.16.04.1

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

References

• CVE-2019-18849