USN-3667-1: libytnef vulnerabilities

31 May 2018

Several security issues were fixed in libytnef.

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Releases

Packages

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

Details

It was discovered that libytnef incorrectly handled certain files.
An attacker could possibly use this to cause a denial of service.
(CVE-2017-12141, CVE-2017-9146, CVE-2017-9471, CVE-2017-9473)

It was discovered that libytnef incorrectly handled certain files.
An attacker could possibly use this to access sensitive information.
(CVE-2017-9058)

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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.

References

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Further reading