FreeBSD: VID-F7FCB75C-E537-11E9-863E-B9B7AF01BA9E (CVE-2019-16255): ruby -- multiple vulnerabilities

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From VID-F7FCB75C-E537-11E9-863E-B9B7AF01BA9E:

Ruby news:

This release includes security fixes. Please check the topics below for

details.

CVE-2019-15845: A NUL injection vulnerability of File.fnmatch and

File.fnmatch?

A NUL injection vulnerability of Ruby built-in methods (File.fnmatch

and File.fnmatch?) was found. An attacker who has the control of the

path pattern parameter could exploit this vulnerability to make path

matching pass despite the intention of the program author.

CVE-2019-16201: Regular Expression Denial of Service vulnerability of

WEBrick's Digest access authentication

Regular expression denial of service vulnerability of WEBrick's Digest

authentication module was found. An attacker can exploit this

vulnerability to cause an effective denial of service against a WEBrick

service.

CVE-2019-16254: HTTP response splitting in WEBrick (Additional fix)

There is an HTTP response splitting vulnerability in WEBrick bundled

with Ruby.

CVE-2019-16255: A code injection vulnerability of Shell#[] and

Shell#test

A code injection vulnerability of Shell#[] and Shell#test in a standard

library (lib/shell.rb) was found.