google google-protobuf CVE-2021-22569 vulnerability in Google and Other Products
Published on January 10, 2022

Denial of Service of protobuf-java parsing procedure

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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.

Github Repository Github Repository NVD

Vulnerability Analysis

CVE-2021-22569 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Incorrect Behavior Order

The product performs multiple related behaviors, but the behaviors are performed in the wrong order in ways which may produce resultant weaknesses.


Products Associated with CVE-2021-22569

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-22569 are published in these products:

Google Protobuf
 
Google Protobuf Java
 
Google Protobuf Kotlin
 
Oracle Communications Cloud Native Core Console
 
Oracle Communications Cloud Native Core Policy
 
Oracle Communications Cloud Native Core Network Repository Function
 
Oracle Spatial And Graph Mapviewer
 
Canonical Ubuntu Linux
 

Affected Versions

Google LLC protobuf-java: Google LLC protobuf-kotlin: Google LLC google-protobuf [JRuby Gem]:

Vulnerable Packages

The following package name and versions may be associated with CVE-2021-22569

Package Manager Vulnerable Package Versions Fixed In
maven io.github.skylot:jadx-core <= 1.4.2 1.4.3
maven com.google.protobuf:protobuf-java >= 3.19.0, < 3.19.2 3.19.2
maven com.google.protobuf:protobuf-java >= 3.18.0, < 3.18.2 3.18.2
maven com.google.protobuf:protobuf-kotlin >= 3.18.0, < 3.18.2 3.18.2
maven com.google.protobuf:protobuf-java < 3.16.1 3.16.1
maven com.google.protobuf:protobuf-kotlin >= 3.19.0, < 3.19.2 3.19.2
rubygems google-protobuf < 3.19.2 3.19.2

Exploit Probability

EPSS
0.33%
Percentile
55.45%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.