Security Bulletin: Vulnerabilities in Python affect PowerKVM

Vulnerability Details

Affecting both PowerKVM 3.1 and PowerKVM 2.1:
CVEID: CVE-2016-0772
DESCRIPTION: Python's smtplib library is vulnerable to a stripping attack. An exception isn't returned by the Python's smtplib library if StartTLS fails to establish correctly in the SMTP.starttls() function. An attacker with man-in-the-middle ability could exploit this vulnerability to strip out the STARTTLS command without generating an exception on the python SMTP client application and prevent the establishment of the TLS layer.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114287 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2016-5699
DESCRIPTION: urllib2 and urllib for Python are vulnerable to HTTP header injection, caused by improper validation of input. By persuading a victim to visit a specially-crafted Web page, a remote attacker could exploit this vulnerability to inject arbitrary HTTP headers, which will allow the attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114200 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2016-1000110
DESCRIPTION: Python could allow a remote attacker to redirect HTTP traffic of CGI application, caused by the failure to protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable. By using a specially-crafted Proxy header in a HTTP request, an attacker could exploit this vulnerability to redirect outbound HTTP traffic to arbitrary proxy server. This is also known as the "HTTPOXY" vulnerability.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/115381 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affecting PowerKVM 3.1 only:

CVEID: CVE-2013-2099
DESCRIPTION: Python is vulnerable to a denial of service, caused by an error in the ssl.match_hostname() function when matching certificates with multiple wildcard characters. By sending a specially-crafted SSL certificate containing wildcard characters, a remote attacker could exploit this vulnerability to cause the application to consume an overly large amount of CPU resources. Note: This vulnerability also affects Red Hat Storage.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/96133 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2013-7440
DESCRIPTION: Python could allow a remote attacker to conduct spoofing attacks, caused by an error when handling certificates that contain hostnames with wildcard by the ssl.match_hostname() function. An attacker could exploit this vulnerability using man-in-the-middle techniques to spoof SSL servers, which could be used to launch further attacks against the victim.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114552 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)