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Ubuntu Security Notice USN-2604-1

Ubuntu Security Notice USN-2604-1
Posted May 11, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2604-1 - Hanno B=C3=B6ck discovered that Libtasn1 incorrectly handled certain ASN.1 data. A remote attacker could possibly 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.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2015-3622
SHA-256 | 2a5e0c061702739f2a1c761d7b8bc2d7220399e8f44fb3c8f6b34fbc69a9783c

Ubuntu Security Notice USN-2604-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2604-1
May 11, 2015

libtasn1-3, libtasn1-6 vulnerability
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.04
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Libtasn1 could be made to crash or run programs if it processed specially
crafted data.

Software Description:
- libtasn1-6: Library to manage ASN.1 structures
- libtasn1-3: Library to manage ASN.1 structures

Details:

Hanno B=C3=B6ck discovered that Libtasn1 incorrectly handled certain ASN.1 data.
A remote attacker could possibly 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.

Update instructions:

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

Ubuntu 15.04:
libtasn1-6 4.2-2ubuntu1.1

Ubuntu 14.10:
libtasn1-6 4.0-2ubuntu0.2

Ubuntu 14.04 LTS:
libtasn1-6 3.4-3ubuntu0.3

Ubuntu 12.04 LTS:
libtasn1-3 2.10-1ubuntu1.4

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

References:
http://www.ubuntu.com/usn/usn-2604-1
CVE-2015-3622

Package Information:
https://launchpad.net/ubuntu/+source/libtasn1-6/4.2-2ubuntu1.1
https://launchpad.net/ubuntu/+source/libtasn1-6/4.0-2ubuntu0.2
https://launchpad.net/ubuntu/+source/libtasn1-6/3.4-3ubuntu0.3
https://launchpad.net/ubuntu/+source/libtasn1-3/2.10-1ubuntu1.4
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