Debian Security Advisory

DLA-2027-1 jruby -- LTS security update

Date Reported:
10 Dec 2019
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2017-17742, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255.
More information:

Several security vulnerabilities were found in Ruby that also affected Debian's JRuby package, a pure-Java implementation of Ruby. Attackers were able to call arbitrary Ruby methods, cause a denial-of-service or inject input into HTTP response headers when using the WEBrick module.

For Debian 8 Jessie, these problems have been fixed in version 1.5.6-9+deb8u2.

We recommend that you upgrade your jruby packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: