Threat database

Jawn is an open source JSON parser that prior to version 1.7.0 allowed parsing of JSON with arbitrarily deep nesting without limits. This could cause the parser to exhaust the JVM heap memory, resulting in a fatal OutOfMemoryError and denial of service. The issue is fixed in version 1.7.0.

Jawn is an open source JSON parser with a vulnerability in its AsyncParser component prior to version 1.7.0. The AsyncParser can perform quadratic work when processing a single JSON token delivered in many small chunks, leading to excessive CPU consumption. This can be exploited by a remote attacker controlling untrusted JSON input and chunk sizes to cause a denial of service. The issue is fixed in version 1.7.0.

fs2 is a compositional, streaming I/O library for Scala. Versions up to and including 2.5.12, 3.0.0-M1 through 3.12.2, and 3.13.0-M1 through 3.13.0-M6 are vulnerable to denial of service attacks though TLS sessions using fs2-io on the JVM using the fs2.io.net.tls package. When establishing a TLS session, if one side of the connection shuts down `write` while the peer side is awaiting more data to progress the TLS handshake, the peer side will spin loop on the socket read, fully utilizing a CPU. The CPU is consumed until the overall connection is closed, potentially shutting down a fs2-io powered server. This issue is fixed in versions 2.5.13, 3.12.1, and 3.13.0-M7.

EPSS 0.4%Vulnerabilitytypelevel#cwe-400Germany+6