Vulnerability · Published Oct 12, 2022 · Assigned by Google

CVE-2022-3171Memory handling vulnerability in ProtocolBuffers Java core and lite

Medium 4.3

In plain English

A medium-severity improper input validation in Protocolbuffers from Google LLC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)1.3%top 29.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

A parsing issue with binary data 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12protobuf3.21.9-3DEBIAN-CVE-2022-3171
Debian:13protobuf3.21.9-3DEBIAN-CVE-2022-3171
Debian:14protobuf3.21.9-3DEBIAN-CVE-2022-3171
Mavencom.google.protobuf:protobuf-java3.16.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-java3.21.7GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-java3.20.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-java3.19.6GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-javalite3.20.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-javalite3.16.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-javalite3.21.7GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-javalite3.19.6GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin3.21.7GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin3.20.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin3.19.6GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin3.16.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin-lite3.19.6GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin-lite3.21.7GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin-lite3.20.3GHSA-h4h5-3hr4-j3g2
Mavencom.google.protobuf:protobuf-kotlin-lite3.16.3GHSA-h4h5-3hr4-j3g2
RubyGemsgoogle-protobuf3.19.6GHSA-h4h5-3hr4-j3g2
RubyGemsgoogle-protobuf3.21.7GHSA-h4h5-3hr4-j3g2
RubyGemsgoogle-protobuf3.20.3GHSA-h4h5-3hr4-j3g2
RubyGemsgoogle-protobuf3.16.3GHSA-h4h5-3hr4-j3g2
Ubuntu:22.04:LTSprotobufno fix listedUBUNTU-CVE-2022-3171

Affected products (as reported)

VendorProductVersions
Google LLC Protocolbuffers 3.21.7 – before 3.21.73.20.3 – before 3.20.33.19.6 – before 3.19.63.16.3 – before 3.16.3

Weakness: CWE-20 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References