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Sicherheit: Zwei Probleme in Python
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Python
ID: USN-1985-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.10, Ubuntu 13.04
Datum: Mi, 2. Oktober 2013, 07:54
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2099
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4238
Applikationen: Python

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==========================================================================
Ubuntu Security Notice USN-1985-1
October 01, 2013

python3.3 vulnerabilities
==========================================================================

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

- Ubuntu 13.04
- Ubuntu 12.10

Summary:

Several security issues were fixed in Python.

Software Description:
- python3.3: An interactive high-level object-oriented language

Details:

Florian Weimer discovered that Python incorrectly handled matching multiple
wildcards in ssl certificate hostnames. An attacker could exploit this to
cause Python to consume resources, resulting in a denial of service.
(CVE-2013-2099)

Ryan Sleevi discovered that Python did not properly handle certificates
with NULL characters in the Subject Alternative Name field. An attacker
could exploit this to perform a man in the middle attack to view sensitive
information or alter encrypted communications. (CVE-2013-4238)

Update instructions:

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

Ubuntu 13.04:
python3.3 3.3.1-1ubuntu5.2
python3.3-minimal 3.3.1-1ubuntu5.2

Ubuntu 12.10:
python3.3 3.3.0-1ubuntu0.1
python3.3-minimal 3.3.0-1ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-1985-1
CVE-2013-2099, CVE-2013-4238

Package Information:
https://launchpad.net/ubuntu/+source/python3.3/3.3.1-1ubuntu5.2
https://launchpad.net/ubuntu/+source/python3.3/3.3.0-1ubuntu0.1



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