RHSA-2017:0002 - Security Advisory

Topic

An update for rh-nodejs4-nodejs and rh-nodejs4-http-parser is now available for Red Hat Software Collections.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

The following packages have been upgraded to a newer upstream version: rh-nodejs4-nodejs (4.6.2), rh-nodejs4-http-parser (2.7.0). (BZ#1388097)

Security Fix(es):

• It was found that Node.js' tls.checkServerIdentity() function did not properly validate server certificates containing wildcards. A malicious TLS server could use this flaw to get a specially crafted certificate accepted by a Node.js TLS client. (CVE-2016-7099)
• It was found that the V8 Zone class was vulnerable to integer overflow when allocating new memory (Zone::New() and Zone::NewExpand()). An attacker with the ability to manipulate a large zone could crash the application or, potentially, execute arbitrary code with the application privileges. (CVE-2016-1669)
• A vulnerability was found in c-ares, a DNS resolver library bundled with Node.js. A hostname with an escaped trailing dot would have its size calculated incorrectly, leading to a single byte written beyond the end of a buffer on the heap. An attacker able to provide such a hostname to an application using c-ares, could potentially cause that application to crash. (CVE-2016-5180)
• It was found that the reason argument in ServerResponse#writeHead() was not properly validated. A remote attacker could possibly use this flaw to conduct an HTTP response splitting attack via a specially-crafted HTTP request. (CVE-2016-5325)

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

Affected Products

• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.5 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.4 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.3 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.2 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.1 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 6 x86_64

Fixes

• BZ - 1335449 - CVE-2016-1669 V8: integer overflow leading to buffer overflow in Zone::New
• BZ - 1346910 - CVE-2016-5325 nodejs: reason argument in ServerResponse#writeHead() not properly validated
• BZ - 1379921 - CVE-2016-7099 nodejs: wildcard certificates not properly validated
• BZ - 1380463 - CVE-2016-5180 c-ares: Single byte out of buffer write
• BZ - 1388097 - Rebase nodejs to latest v4 release

CVEs

• CVE-2016-1669
• CVE-2016-5180
• CVE-2016-5325
• CVE-2016-7099

References

• https://access.redhat.com/security/updates/classification/#important