==========================================================================
Ubuntu Security Notice USN-3547-1
January 25, 2018
libtasn1-6 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 17.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Libtasn1.
Software Description:
– libtasn1-6: Library to manage ASN.1 structures
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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
libtasn1-6 4.12-2.1ubuntu0.1
Ubuntu 16.04 LTS:
libtasn1-6 4.7-3ubuntu0.16.04.3
Ubuntu 14.04 LTS:
libtasn1-6 3.4-3ubuntu0.6
In general, a standard system update will make all the necessary
changes.
References:
https://www.ubuntu.com/usn/usn-3547-1
CVE-2017-10790, CVE-2018-6003
Package Information:
https://launchpad.net/ubuntu/+source/libtasn1-6/4.12-2.1ubuntu0.1
https://launchpad.net/ubuntu/+source/libtasn1-6/4.7-3ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/libtasn1-6/3.4-3ubuntu0.6
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2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=V9NI
—–END PGP SIGNATURE—–
—
