NetSight
IP …
high7.5

CVE-2021-22569

A potential Denial of Service issue in protobuf-java

Impact

## Summary A potential Denial of Service issue in protobuf-java was discovered in the parsing procedure for binary data. Reporter: [OSS-Fuzz](https://github.com/google/oss-fuzz) Affected versions: All versions of Java Protobufs (including Kotlin and JRuby) prior to the versions listed below. Protobuf "javalite" users (typically Android) are not affected. ## Severity [CVE-2021-22569](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22569) **High** - CVSS Score: 7.5, An implementation weakness in how unknown fields are parsed in Java. A small (~800 KB) malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated GC pauses. ## Proof of Concept For reproduction details, please refer to the oss-fuzz issue that identifies the specific inputs that exercise this parsing weakness. ## Remediation and Mitigation Please update to the latest available versions of the following packages: - protobuf-java (3.16.1, 3.18.2, 3.19.2) - protobuf-kotlin (3.18.2, 3.19.2) - google-protobuf [JRuby gem only] (3.19.2)

Affected packages

EcosystemPackageAffectedFixed in
mavencom.google.protobuf:protobuf-java< 3.16.13.16.1
rubygemsgoogle-protobuf< 3.19.23.19.2
mavencom.google.protobuf:protobuf-kotlin>= 3.18.0, < 3.18.23.18.2

Affected products

VendorProductAffected versions
GoogleGoogle-Protobuf
before 3.19.2
GoogleProtobuf-Java
before 3.16.1
from 3.18.0 before 3.18.2
from 3.19.0 before 3.19.2
GoogleProtobuf-Kotlin
before 3.18.2
from 3.19.0 before 3.19.2
OracleCommunications Cloud Native Core Console
Version 1.9.0
OracleCommunications Cloud Native Core Network Repository Function
Versions 1.15.0, 1.15.1
OracleCommunications Cloud Native Core Policy
Version 1.15.0
OracleSpatial And Graph Mapviewer
Versions 19c, 21c

Weakness classification

CWE-696

References