CVE-2019-16770
Puma Denial of Service (DoS) Vulnerability
Description
In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2.
INFO
Published Date :
Dec. 5, 2019, 8:15 p.m.
Last Modified :
Oct. 8, 2022, 2:42 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-16770.
| URL | Resource |
|---|---|
| https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994 | Mitigation Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html | Mailing List Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-16770 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-16770 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 08, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 26, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html [No Types Assigned] -
Modified Analysis by [email protected]
May. 06, 2020
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
Initial Analysis by [email protected]
Dec. 19, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994 No Types Assigned https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994 Mitigation, Third Party Advisory Added CWE NIST CWE-770 Added CPE Configuration OR *cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions from (including) 3.0.0 up to (excluding) 3.12.2 *cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions from (including) 4.0.0 up to (excluding) 4.3.1 -
CVE Modified by [email protected]
Dec. 06, 2019
Action Type Old Value New Value Changed Description A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. In Puma before version 4.3.2, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-16770 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-16770
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} -0.03%
score
0.33115
percentile