CVE-2021-22570

Una desreferencia de puntero Null cuando un char nulo está presente en un símbolo proto. El símbolo es analizado incorrectamente, conllevando a una llamada no comprobada al nombre del archivo proto durante la generación del mensaje de error resultante. Como el símbolo es analizado incorrectamente, el archivo es nullptr. Es recomendado actualizar a versión 3.15.0 o superior

A flaw was found in protobuf. The vulnerability occurs due to incorrect parsing of a NULL character in the proto symbol and leads to a Null pointer dereference. This flaw allows an attacker to execute unauthorized code or commands, read memory, modify memory.

It was discovered that Protocol Buffers did not properly validate field com.google.protobuf.UnknownFieldSet in protobuf-java. An attacker could possibly use this issue to perform a denial of service attack. This issue only affected protobuf Ubuntu 22.04 LTS and Ubuntu 22.10. It was discovered that Protocol Buffers did not properly parse certain symbols. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.