Version Details and Security Vulnerabilities

protobuf.js (aka protobufjs) 6.10.0 until 6.11.4 and 7.0.0 until 7.2.4 allows Prototype Pollution, a different vulnerability than CVE-2022-25878. A user-controlled protobuf message can be used by an attacker to pollute the prototype of Object.prototype by adding and overwriting its data and functions. Exploitation can involve: (1) using the function parse to parse protobuf messages on the fly, (2) loading .proto files by using load/loadSync functions, or (3) providing untrusted input to the functions ReflectionObject.setParsedOption and util.setProperty. NOTE: this CVE Record is about Object.constructor.prototype.<new-property> = ...; whereas CVE-2022-25878 was about Object.__proto__.<new-property> = ...; instead.

Impact

There are two separate code paths in which memory can be allocated per message in excess of the grpc.max_receive_message_length channel option:

1. If an incoming message has a size on the wire greater than the configured limit, the entire message is buffered before it is discarded.
2. If an incoming message has a size within the limit on the wire but decompresses to a size greater than the limit, the entire message is decompressed into memory, and on the server is not discarded.

Patches

This has been patched in versions 1.10.9, 1.9.15, and 1.8.22