RHSA-2020:3308

Vulnerability from csaf_redhat - Published: 2020-08-04 11:39 - Updated: 2026-05-14 22:30
Summary
Red Hat Security Advisory: Red Hat JBoss Web Server 5.3.2 security update
Severity
Important
Notes
Topic: Updated Red Hat JBoss Web Server 5.3.2 packages are now available for Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 and Windows. Red Hat Product Security has rated this release as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (mod_cluster), the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library. This release of Red Hat JBoss Web Server 5.3.2 serves as a replacement for Red Hat JBoss Web Server 5.3.1, and includes bug fixes, enhancements, and component upgrades, which are documented in the Release Notes, linked to in the References. Security Fix(es): * tomcat: OutOfMemoryException caused by HTTP/2 connection leak could lead to DoS (CVE-2020-13934) * tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS (CVE-2020-13935) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2020-13934

A flaw was found in Apache Tomcat, where an h2c direct connection did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests are made, an OutOfMemoryException could occur, leading to a denial of service. The highest threat from this vulnerability is to system availability.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 - Uncontrolled Resource Consumption
Affected products
Product Identifier Version Remediation
Red Hat JBoss Web Server (JWS) 5.3
Red Hat / Red Hat JBoss Web Server
 cpe:/a:redhat:jboss_enterprise_web_server:5.3 —
Vendor Fix fix
Threats
Impact Important
CVE-2020-13935

A flaw was found in Apache Tomcat, where the payload length in a WebSocket frame was not correctly validated. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. The highest threat from this vulnerability is to system availability.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 - Uncontrolled Resource Consumption
Affected products
Product Identifier Version Remediation
Red Hat JBoss Web Server (JWS) 5.3
Red Hat / Red Hat JBoss Web Server
 cpe:/a:redhat:jboss_enterprise_web_server:5.3 —
Vendor Fix fix
Workaround
Threats
Impact Important
References
To clipboard 

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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.