title: Denial of Service of protobuf-java parsing procedure
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.
problem types: CWE-696 Incorrect Behavior Order
affected:
{
vendor: Google LLC
product: protobuf-java
versions:
version: unspecified, lessThan: 3.16.1, status: affected, versionType: custom
version: unspecified, lessThan: 3.18.2, status: affected, versionType: custom
version: unspecified, lessThan: 3.19.2, status: affected, versionType: custom
}
{
vendor: Google LLC
product: protobuf-kotlin
versions:
version: unspecified, lessThan: 3.18.2, status: affected, versionType: custom
version: unspecified, lessThan: 3.19.2, status: affected, versionType: custom
}
{
vendor: Google LLC
product: google-protobuf [JRuby Gem]
versions:
version: unspecified, lessThan: 3.19.2, status: affected, versionType: custom
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
]