CVE-2019-16201

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.45%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/661722 third party advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00025.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2019/12/msg00009.html mailing list
https://seclists.org/bugtraq/2019/Dec/31 mailing list
https://seclists.org/bugtraq/2019/Dec/32 mailing list
https://www.debian.org/security/2019/dsa-4587 vendor advisory
https://www.oracle.com/security-alerts/cpujan2020.html
https://security.gentoo.org/glsa/202003-06 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html vendor advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html mailing list
https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html mailing list

Frequently Asked Questions

What is the severity of CVE-2019-16201?
CVE-2019-16201 has been scored as a high severity vulnerability.
How to fix CVE-2019-16201?
To fix CVE-2019-16201, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-16201 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-16201 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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