Synopsis:          Important: python-twisted-web security update
Advisory ID:       SLSA-2016:1978-1
Issue Date:        2016-09-29
CVE Numbers:       CVE-2016-1000111
--

Security Fix(es):

* It was discovered that python-twisted-web used the value of the Proxy
header from HTTP requests to initialize the HTTP_PROXY environment
variable for CGI scripts, which in turn was incorrectly used by certain
HTTP client implementations to configure the proxy for outgoing HTTP
requests. A remote attacker could possibly use this flaw to redirect HTTP
requests performed by a CGI script to an attacker-controlled proxy via a
malicious HTTP request. (CVE-2016-1000111)

Note: After this update, python-twisted-web will no longer pass the value
of the Proxy request header to scripts via the HTTP_PROXY environment
variable.
--

SL6
  x86_64
    python-twisted-web-8.2.0-5.el6_8.x86_64.rpm
  i386
    python-twisted-web-8.2.0-5.el6_8.i686.rpm
SL7
  x86_64
    python-twisted-web-12.1.0-5.el7_2.x86_64.rpm

- Scientific Linux Development Team