Allocation of Resources Without Limits or Throttling in jackson-core - #VU137339

Detailed vulnerability description

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to allocation of resources without limits or throttling in the NonBlockingUtf8JsonParserBase async parser when processing chunked JSON input containing an unterminated integer value. A remote attacker can stream many small chunks of digits without sending a terminator byte to cause a denial of service.

The issue affects the non-blocking streaming path and validation is deferred until the number is completed or end of input is reached.

Remediation

Sources

• https://github.com/FasterXML/jackson-core/security/advisories/GHSA-r7wm-3cxj-wff9
• https://github.com/FasterXML/jackson-core/blob/b0c428e6/src/main/java/com/fasterxml/jackson/core/json/async/NonBlockingUtf8JsonParserBase.java