rhsa-2020_3305
Vulnerability from csaf_redhat
Published
2020-08-04 11:17
Modified
2024-09-13 22:07
Summary
Red Hat Security Advisory: Red Hat JBoss Web Server 3.1 Service Pack 10 security update
Notes
Topic
An update is now available for Red Hat JBoss Web Server 3.1, for RHEL 6, RHEL 7 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 HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector (mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and the Tomcat Native library.
This release of Red Hat JBoss Web Server 3.1 Service Pack 10 serves as a replacement for Red Hat JBoss Web Server 3.1, and includes bug fixes, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS (CVE-2020-13935)
* tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling (CVE-2020-1935)
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.
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"text": "An update is now available for Red Hat JBoss Web Server 3.1, for RHEL 6, RHEL 7 and Windows.\n\nRed 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.",
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"text": "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 HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector (mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and the Tomcat Native library.\n\nThis release of Red Hat JBoss Web Server 3.1 Service Pack 10 serves as a replacement for Red Hat JBoss Web Server 3.1, and includes bug fixes, which are documented in the Release Notes document linked to in the References.\n\nSecurity Fix(es):\n\n* tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS (CVE-2020-13935)\n* tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling (CVE-2020-1935) \n\nFor 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.",
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"url": "https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_3305.json"
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"title": "Red Hat Security Advisory: Red Hat JBoss Web Server 3.1 Service Pack 10 security update",
"tracking": {
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"name": "Red Hat JBoss Web Server 3.1",
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"acknowledgments": [
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"organization": "Apache Tomcat Security Team"
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"cve": "CVE-2020-1935",
"cwe": {
"id": "CWE-444",
"name": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)"
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"discovery_date": "2019-12-25T00:00:00+00:00",
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"text": "A flaw was found in Apache Tomcat. The HTTP header parsing code used an approach to end-of-line (EOL) parsing that allowed some invalid HTTP headers to be parsed as valid. This led to the possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. The highest threat with this vulnerability is system availability.",
"title": "Vulnerability description"
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{
"category": "summary",
"text": "tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "OpenDaylight in Red Hat OpenStack 10 \u0026 13 was in technical preview status, because of this no fixes will be released for it.\n\nIn Red Hat Satellite 6, Candlepin is using Tomcat to provide a REST API, and has been found to be vulnerable to the flaw. However, it is currently believed that no useful attacks can be carried over.",
"title": "Statement"
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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],
"product_status": {
"fixed": [
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"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-1935"
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"summary": "RHBZ#1806835",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1806835"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-1935",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-1935"
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1935",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1935"
},
{
"category": "external",
"summary": "https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.100",
"url": "https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.100"
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{
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"url": "https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.51"
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{
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"url": "https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.31"
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"release_date": "2020-02-24T00:00:00+00:00",
"remediations": [
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"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Web Server 3.1"
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"category": "none"
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"url": "https://access.redhat.com/errata/RHSA-2020:3305"
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{
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"details": "Workaround for Red Hat Satellite 6 is to add iptables rule to deny TCP requests of Tomcat that are not originating from the Satellite.\n\nFor other Red Hat products, either mitigation isn\u0027t available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
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"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
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"products": [
"Red Hat JBoss Web Server 3.1"
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"threats": [
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"details": "Low"
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"title": "tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling"
},
{
"cve": "CVE-2020-13935",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2020-07-15T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1857024"
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"notes": [
{
"category": "description",
"text": "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.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Certificate System 10.0 as well as Red Hat Enterprise Linux 8\u0027s Identity Management, are using a vulnerable version of Tomcat, bundled into the pki-servlet-engine component. However, there is no entry point for WebSockets, thus it is not possible to trigger the flaw in a supported setup. A future update may fix the code. Similarly, Red Hat OpenStack Platform 13 does not ship with WebSocket functionality enabled by default.",
"title": "Statement"
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{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
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"url": "https://access.redhat.com/security/cve/CVE-2020-13935"
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"summary": "RHBZ#1857024",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1857024"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2020-13935"
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{
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13935"
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{
"category": "external",
"summary": "http://mail-archives.apache.org/mod_mbox/tomcat-announce/202007.mbox/%3C39e4200c-6f4e-b85d-fe4b-a9c2bd5fdc3d%40apache.org%3E",
"url": "http://mail-archives.apache.org/mod_mbox/tomcat-announce/202007.mbox/%3C39e4200c-6f4e-b85d-fe4b-a9c2bd5fdc3d%40apache.org%3E"
},
{
"category": "external",
"summary": "http://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.0-M7",
"url": "http://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.0-M7"
},
{
"category": "external",
"summary": "http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.105",
"url": "http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.105"
},
{
"category": "external",
"summary": "http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.57",
"url": "http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.57"
},
{
"category": "external",
"summary": "http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.37",
"url": "http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.37"
}
],
"release_date": "2020-07-15T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
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"restart_required": {
"category": "none"
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"url": "https://access.redhat.com/errata/RHSA-2020:3305"
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{
"category": "workaround",
"details": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.",
"product_ids": [
"Red Hat JBoss Web Server 3.1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"products": [
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS"
}
]
}
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