The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Ruby: denial of service via WEBrick Service Regular Expression

Synthesis of the vulnerability 

An attacker can trigger a fatal error via WEBrick Service Regular Expression of Ruby, in order to trigger a denial of service.
Vulnerable systems: Debian, openSUSE Leap, Solaris, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 2/4.
Creation date: 26/11/2019.
Références of this weakness: CVE-2019-16201, DLA-2007-1, DLA-2027-1, DLA-2330-1, DSA-4586-1, DSA-4587-1, openSUSE-SU-2020:0395-1, RHSA-2021:2104-01, RHSA-2021:2230-01, SUSE-SU-2020:0737-1, SUSE-SU-2020:1570-1, USN-4201-1, VIGILANCE-VUL-30968.

Description of the vulnerability 

An attacker can trigger a fatal error via WEBrick Service Regular Expression of Ruby, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This security bulletin impacts software or systems such as Debian, openSUSE Leap, Solaris, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity announce is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this vulnerability alert.

Solutions for this threat 

Debian 10: new ruby2.5 packages.
New packages are available:
  Debian 10: ruby2.5 2.5.5-3+deb10u1

Debian 8: new jruby packages.
New packages are available:
  Debian 8: jruby 1.5.6-9+deb8u2

Debian 8: new ruby2.1 packages.
New packages are available:
  Debian 8: ruby2.1 2.1.5-2+deb8u8

Debian 9: new jruby packages.
New packages are available:
  Debian 9: jruby 1.7.26-1+deb9u2

Debian 9: new ruby2.3 packages.
New packages are available:
  Debian 9: ruby2.3 2.3.3-1+deb9u7

openSUSE Leap 15.1: new ruby2.5 packages.
New packages are available:
  openSUSE Leap 15.1: ruby2.5 2.5.7-lp151.4.6.1

Oracle Solaris: patch for third party software of Januray 2020 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 7: new rh-ruby25-ruby packages.
New packages are available:
  RHEL 7.0-7.9: rh-ruby25-ruby 2.5.9-9.el7

RHEL 7: new rh-ruby26-ruby packages.
New packages are available:
  RHEL 7.0-7.9: rh-ruby26-ruby 2.6.7-119.el7

SUSE LE 12: new ruby2.1 packages.
New packages are available:
  SUSE LE 12 SP2: ruby2.1 2.1.9-19.3.2
  SUSE LE 12 SP3: ruby2.1 2.1.9-19.3.2
  SUSE LE 12 SP4: ruby2.1 2.1.9-19.3.2
  SUSE LE 12 SP5: ruby2.1 2.1.9-19.3.2

SUSE LE 15: new ruby2.5 packages.
New packages are available:
  SUSE LE 15 RTM: ruby2.5 2.5.7-4.8.1
  SUSE LE 15 SP1: ruby2.5 2.5.7-4.8.1

Ubuntu: new ruby packages.
New packages are available:
  Ubuntu 19.10: libruby2.5 2.5.5-4ubuntu2.1, ruby2.5 2.5.5-4ubuntu2.1
  Ubuntu 19.04: libruby2.5 2.5.5-1ubuntu1.1, ruby2.5 2.5.5-1ubuntu1.1
  Ubuntu 18.04 LTS: libruby2.5 2.5.1-1ubuntu1.6, ruby2.5 2.5.1-1ubuntu1.6
  Ubuntu 16.04 LTS: libruby2.3 2.3.1-2~ubuntu16.04.14, ruby2.3 2.3.1-2~ubuntu16.04.14

Wind River Linux: version 10.17.41.19.
The version 10.17.41.19 is fixed.
This bulletin fixes more than 100 vulnerabilities, but only the 100 recent vulnerabilities were associated to this bulletin.

Wind River Linux: version 10.18.44.14.
The version 10.18.44.14 is fixed:
  https://support2.windriver.com/
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a software vulnerabilities note. The technology watch team tracks security threats targeting the computer system.