Ubuntu 12.04 LTS / 12.10 / 13.04 : python2.7 vulnerabilities (USN-1983-1)

Ubuntu Security Notice (C) 2013 Canonical, Inc. / NASL script (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

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. This issue only affected Ubuntu 13.04.
(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).

Solution :

Update the affected python2.7 and / or python2.7-minimal packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 70267 ()

Bugtraq ID: 59877
61738

CVE ID: CVE-2013-2099
CVE-2013-4238