RedHat: RHSA-2016-1538:01 Moderate: golang security, bug fix,
Summary
The golang packages provide the Go programming language compiler.
The following packages have been upgraded to a newer upstream version:
golang (1.6.3). (BZ#1346331)
Security Fix(es):
* An input-validation flaw was discovered in the Go programming language
built in CGI implementation, which set the environment variable
"HTTP_PROXY" using the incoming "Proxy" HTTP-request header. The
environment variable "HTTP_PROXY" is used by numerous web clients,
including Go's net/http package, to specify a proxy server to use for HTTP
and, in some cases, HTTPS requests. This meant that when a CGI-based web
application ran, an attacker could specify a proxy server which the
application then used for subsequent outgoing requests, allowing a
man-in-the-middle attack. (CVE-2016-5386)
Red Hat would like to thank Scott Geary (VendHQ) for reporting this issue.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2016-5386 https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Server Optional (v. 7):
Source:
golang-1.6.3-1.el7_2.1.src.rpm
noarch:
golang-docs-1.6.3-1.el7_2.1.noarch.rpm
golang-misc-1.6.3-1.el7_2.1.noarch.rpm
golang-src-1.6.3-1.el7_2.1.noarch.rpm
golang-tests-1.6.3-1.el7_2.1.noarch.rpm
x86_64:
golang-1.6.3-1.el7_2.1.x86_64.rpm
golang-bin-1.6.3-1.el7_2.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for golang is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server Optional (v. 7) - noarch, x86_64
Bugs Fixed
1346331 - REBASE to golang 1.6
1353798 - CVE-2016-5386 Go: sets environmental variable based on user supplied Proxy request header