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CVE-2019-16201

Published: 20 November 2019

WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.

From the Ubuntu security team

It was discovered that WEBrick as provided by JRuby was vulnerable to a denial of service attack due to catastrophic backtracking in certain regular expressions. An attacker could use this vulnerability to cause JRuby to consume system resources.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
jruby
Launchpad, Ubuntu, Debian
bionic Needed

disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Needed

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Needed

precise Does not exist

trusty Needed

upstream Needs triage

xenial Ignored
(end of standard support, was needed)
ruby2.3
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (2.3.1-2~ubuntu16.04.14)
ruby2.5
Launchpad, Ubuntu, Debian
bionic
Released (2.5.1-1ubuntu1.6)
disco
Released (2.5.5-1ubuntu1.1)
eoan
Released (2.5.5-4ubuntu2.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (2.5.7-1)
xenial Does not exist