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A potential Denial of Service issue in protobuf-java was discovered in the parsing procedure for binary data.
Reporter: 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.
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.
For reproduction details, please refer to the oss-fuzz issue that identifies the specific inputs that exercise this parsing weakness.
Please update to the latest available versions of the following packages:
A potential Denial of Service issue in protobuf-java was discovered in the parsing procedure for binary data.
Reporter: 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.
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.
For reproduction details, please refer to the oss-fuzz issue that identifies the specific inputs that exercise this parsing weakness.
Please update to the latest available versions of the following packages:
This high-severity vulnerability could allow attackers to gain unauthorized access, execute arbitrary code, or compromise data integrity. Prompt remediation is strongly recommended.
Probability of exploitation in the next 30 days · more likely than 76.1% of all CVEs.
Apply security patches to version 3.16.1 immediately
Isolate affected systems from untrusted networks until patching is complete
Implement enhanced monitoring for exploitation attempts and unusual behavior