Chapter 5. Fixed issues

ENTMQST-2453

The kafka-exporter pod restarts for no reason.

ENTMQST-2459

Running Kafka Exporter leads to high CPU usage.

ENTMQST-2511

Fine tune the health checks to stop Kafka Exporter restarting during rolling updates.

ENTMQST-1529

File Source Connector stops in the case of a large file.

ENTMQST-3023

CVE-2021-34428 jetty-server: jetty: SessionListener can prevent a session from being invalidated breaking logout.

A flaw was discovered in the jetty-server, where if an exception is thrown from the SessionListener#sessionDestroyed() method, then the session ID is not invalidated in the session ID manager. On deployments with clustered sessions and multiple contexts, this could result in a session not being invalidated and a shared-computer application being left logged in. The highest threat from this vulnerability is to data confidentiality and integrity.

ENTMQST-2980

CVE-2021-28169 jetty-server: jetty: requests to the ConcatServlet and WelcomeFilter are able to access protected resources within the WEB-INF directory.

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ENTMQST-2711

CVE-2021-21409 netty: Request smuggling via content-length header.

A flaw was found in Netty. There is an issue where the content-length header is not validated correctly if the request uses a single Http2HeaderFrame with the endstream set to true. This flaw leads to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. The highest threat from this vulnerability is to integrity.

ENTMQST-2663

CVE-2021-27568 json-smart: uncaught exception may lead to crash or information disclosure.

A flaw was found in json-smart. When an exception is thrown from a function, but is not caught, the program using the library may crash or expose sensitive information. The highest threat from this vulnerability is to data confidentiality and system availability.

In OpenShift Container Platform (OCP), the Hive/Presto/Hadoop components that comprise the OCP Metering stack, ship the vulnerable version of json-smart package. Since the release of OCP 4.6, the Metering product has been deprecated [1], hence the affected components are marked as wontfix. This may be fixed in the future.

[1] https://docs.openshift.com/container-platform/4.6/release_notes/ocp-4-6-release-notes.html#ocp-4-6-metering-operator-deprecated

ENTMQST-2647

CVE-2021-21295 netty: possible request smuggling in HTTP/2 due missing validation.

In Netty (io.netty:netty-codec-http2) before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by Http2MultiplexHandler as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (HttpRequest, HttpContent, etc.) via Http2StreamFrameToHttpObjectCodec and then sent up to the child channel’s pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling.

ENTMQST-2617

CVE-2021-21290 netty: Information disclosure via the local system temporary directory.

In Netty there is a vulnerability on Unix-like systems involving an insecure temp file. When netty’s multipart decoders are used, a local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure.

ENTMQST-2613

CVE-2020-13949 libthrift: potential DoS when processing untrusted payloads.

A flaw was found in libthrift. Applications using Thrift would not show an error upon receiving messages declaring containers of sizes larger than the payload. This results in malicious RPC clients with the ability to send short messages which would result in a large memory allocation, potentially leading to denial of service. The highest threat from this vulnerability is to system availability.

ENTMQST-1934

CVE-2020-9488 log4j: improper validation of certificate with host mismatch in SMTP appender.

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ENTMQST-2910

CVE-2021-28163 jetty-server: jetty: Symlink directory exposes webapp directory contents.

If the ${jetty.base} directory or the ${jetty.base}/webapps directory is a symlink the contents of the ${jetty.base}/webapps directory may be deployed as a static web application, exposing the content of the directory for download. The highest threat from this vulnerability is to data confidentiality.

ENTMQST-2909

CVE-2021-28164 jetty-server: jetty: Ambiguous paths can access WEB-INF.

In Jetty the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. An attacker can use this vulnerability to reveal sensitive information regarding the implementation of a web application.

ENTMQST-2908

CVE-2021-28165 jetty-server: jetty: Resource exhaustion when receiving an invalid large TLS frame.

When using SSL/TLS with Jetty, either with HTTP/1.1, HTTP/2, or WebSocket, the server may receive an invalid large (greater than 17408) TLS frame that is incorrectly handled, causing high CPU resources utilization. The highest threat from this vulnerability is to service availability.

ENTMQST-2867

CVE-2021-29425 commons-io: apache-commons-io: Limited path traversal in Apache Commons IO 2.2 to 2.6.

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ENTMQST-2821

CVE-2021-28168 jersey-common: jersey: Local information disclosure via system temporary directory.

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