Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS : libtasn1-3, libtasn1-6 vulnerabilities (USN-2294-1)

Ubuntu Security Notice (C) 2014-2016 Canonical, Inc. / NASL script (C) 2014-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

It was discovered that Libtasn1 incorrectly handled certain ASN.1 data
structures. An attacker could exploit this with specially crafted
ASN.1 data and cause applications using Libtasn1 to crash, resulting
in a denial of service. (CVE-2014-3467)

It was discovered that Libtasn1 incorrectly handled negative bit
lengths. An attacker could exploit this with specially crafted ASN.1
data and cause applications using Libtasn1 to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2014-3468)

It was discovered that Libtasn1 incorrectly handled certain ASN.1
data. An attacker could exploit this with specially crafted ASN.1 data
and cause applications using Libtasn1 to crash, resulting in a denial
of service. (CVE-2014-3469).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected libtasn1-3 and / or libtasn1-6 packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 76704 ()

Bugtraq ID: 67745
67748
67749

CVE ID: CVE-2014-3467
CVE-2014-3468
CVE-2014-3469