title: Parsing issue in protobuf textformat
description: A parsing issue similar to CVE-2022-3171, but with textformat in protobuf-java core and lite versions prior to 3.21.7, 3.20.3, 3.19.6 and 3.16.3 can lead to a denial of service attack. Inputs containing multiple instances of non-repeated embedded messages with repeated or unknown fields causes objects to be converted back-n-forth between mutable and immutable forms, resulting in potentially long garbage collection pauses. We recommend updating to the versions mentioned above.
affected:
{
defaultStatus: unaffected
platforms: all
product: ProtocolBuffers
repo: https://github.com/protocolbuffers/protobuf/
vendor: Google
versions:
lessThan: 3.21.7, status: affected, version: 3.21.0, versionType: semver
lessThan: 3.20.3, status: affected, version: 3.20.0, versionType: semver
lessThan: 3.19.6, status: affected, version: 3.19.0, versionType: semver
lessThan: 3.16.3, status: affected, version: 3.16.0, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL