Debian DLA-2330-1 : jruby security update

high Nessus Plugin ID 139628
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VPR Score: 6.7


The remote Debian host is missing a security update.


Several vulnerabilities were fixed in JRuby, a 100% pure-Java implementation of Ruby.

CVE-2017-17742 CVE-2019-16254

HTTP Response Splitting attacks in the HTTP server of WEBrick.


Regular Expression Denial of Service vulnerability of WEBrick's Digest access authentication.


Delete directory using symlink when decompressing tar.


Escape sequence injection vulnerability in verbose.


Escape sequence injection vulnerability in gem owner.


Escape sequence injection vulnerability in API response handling.


Installing a malicious gem may lead to arbitrary code execution.


Escape sequence injection vulnerability in errors.


Code injection vulnerability of Shell#[] and Shell#test.

For Debian 9 stretch, these problems have been fixed in version 1.7.26-1+deb9u2.

We recommend that you upgrade your jruby packages.

For the detailed security status of jruby please refer to its security tracker page at:

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Upgrade the affected jruby package.

See Also

Plugin Details

Severity: High

ID: 139628

File Name: debian_DLA-2330.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/18/2020

Updated: 8/20/2020

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS Score Source: CVE-2019-8320

CVSS v2.0

Base Score: 8.8

Temporal Score: 6.5

Vector: AV:N/AC:M/Au:N/C:N/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:jruby, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/16/2020

Vulnerability Publication Date: 4/3/2018

Reference Information

CVE: CVE-2017-17742, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255, CVE-2019-8320, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325