Description
An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.
Remediation
References
http://www.openwall.com/lists/oss-security/2022/01/12/4
http://www.openwall.com/lists/oss-security/2022/01/12/7
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330
https://cloud.google.com/support/bulletins#gcp-2022-001
https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html
https://www.oracle.com/security-alerts/cpuapr2022.html