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USN-3547-1: Libtasn1 vulnerabilities

25 January 2018

Several security issues were fixed in Libtasn1.

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Releases

Packages

Details

It was discovered that Libtasn1 incorrectly handled certain files.
If a user were tricked into opening a crafted file, an attacker could possibly
use this to cause a denial of service. This issue only affected Ubuntu 14.04
LTS and Ubuntu 16.04 LTS. (CVE-2017-10790)

It was discovered that Libtasn1 incorrectly handled certain inputs.
An attacker could possibly use this to cause Libtasn1 to hang, resulting
in a denial of service. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 17.10. (CVE-2018-6003)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

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