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Overview

com.fasterxml.jackson.core:jackson-core is a Core Jackson abstractions, basic JSON streaming API implementation

Affected versions of this package are vulnerable to Denial of Service (DoS) due to missing input size validation when performing numeric type conversions. A remote attacker can exploit this vulnerability by causing the application to deserialize data containing certain numeric types with large values, causing the application to exhaust all available resources.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

• High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

• Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

Remediation

Upgrade com.fasterxml.jackson.core:jackson-core to version 2.15.0-rc1 or higher.

References

• GitHub Commit
• GitHub Issue
• GitHub PR

Overview

com.fasterxml.jackson.core:jackson-core is a Core Jackson abstractions, basic JSON streaming API implementation

Affected versions of this package are vulnerable to Stack-based Buffer Overflow due to the parse process, which accepts an unlimited input file with deeply nested data. An attacker can cause a stack overflow and crash the application by providing input files with excessively deep nesting.

Remediation

Upgrade com.fasterxml.jackson.core:jackson-core to version 2.15.0-rc1 or higher.

References

• GitHub Commit
• GitHub PR

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling when parsing multipart uploads, which apply the UndertowOptions.MULTIPART_MAX_ENTITY_SIZE option. An attacker can exhaust system memory by submitting large amounts of form data encoded with application/x-www-form-urlencoded.

Remediation

A fix was pushed into the master branch but not yet published.

References

• GitHub PR
• GitHub PR
• GitHub Release
• Jira Issue
• Red Hat Bugzilla Bug
• Red Hat Security Advisory

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the getParameterNames() function. An attacker can cause an OutOfMemoryError by sending requests with excessively large parameter names.

Remediation

A fix was pushed into the master branch but not yet published.

References

• GitHub Commit
• GitHub Release
• Red Hat Bugzilla Bug
• Red Hat Issues

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling (MadeYouReset) through malformed client requests that trigger repeated server-side stream resets without incrementing abuse counters. An attacker can exhaust server resources by sending specially crafted HTTP/2 requests that cause excessive workload through repeated stream aborts.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

• High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

• Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

Remediation

Upgrade io.undertow:undertow-core to version 2.2.38.Final, 2.3.20.Final or higher.

References

• GitHub Commit
• GitHub Commit
• GitHub Commit
• GitHub Commit
• Red Hat Bugzilla Bug
• Vulnerability Research

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Denial of Service (DoS) through the wildfly-http-client protocol, due to the WriteTimeoutStreamSinkConduit process. This vulnerability can be exploited by repeatedly opening and closing connections immediately, which triggers memory and file descriptor leaks.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

• High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

• Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

Remediation

Upgrade io.undertow:undertow-core to version 2.2.31.Final, 2.3.12.Final or higher.

References

• GitHub Commit
• GitHub Commit
• Red Hat Bugzilla Bug
• Red Hat Issues

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Uncontrolled Recursion in chunked response handling. An attacker can cause a client to wait indefinitely by sending excessive data without a 0\r\n termination sequence in chunked responses, thereby disrupting service to the server.

Note: This is only exploitable when using NewSessionTicket functionality in TLS 1.3 on Java 17.

Remediation

Upgrade io.undertow:undertow-core to version 2.2.34.Final, 2.3.8.Final or higher.

References

• GitHub Commit
• Red Hat Bugzilla Bug
• Red Hat Security Advisory

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Uncontrolled Resource Consumption ('Resource Exhaustion') through the handling of URL-encoded request path information on ajp-listener. An attacker can cause the server to process incorrect paths, leading to a disruption of service by sending specially crafted concurrent requests.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

• High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

• Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

Remediation

Upgrade io.undertow:undertow-core to version 2.2.33.Final, 2.3.14.Final or higher.

References

• GitHub Commit
• Red Hat Bugzilla Bug

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Uncontrolled Resource Consumption ('Resource Exhaustion') due to insufficient limitations on the amount of CONTINUATION frames that can be sent within a single stream. An attacker can use up compute or memory resources to cause a disruption in service by sending packets to vulnerable servers.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

• High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

• Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

Remediation

Upgrade io.undertow:undertow-core to version 2.2.33.Final, 2.3.14.Final or higher.

References

• Apache Advisory
• Github Commit
• GitHub Commit
• GitHub Commit
• PoC
• RedHat Bugzilla Bug
• Security Notes