google protobuf CVE-2021-22570 vulnerability in Google and Other Products
Published on January 26, 2022

Nullptr Dereference in Protobuf

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Nullptr dereference when a null char is present in a proto symbol. The symbol is parsed incorrectly, leading to an unchecked call into the proto file's name during generation of the resulting error message. Since the symbol is incorrectly parsed, the file is nullptr. We recommend upgrading to version 3.15.0 or greater.

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Vulnerability Analysis

CVE-2021-22570 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. 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:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

NULL Pointer Dereference

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.


Products Associated with CVE-2021-22570

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-22570 are published in these products:

Google Protobuf
 
Debian Linux
 
Fedora Project Fedora
 
Oracle MySQL
 
NetApp Snapcenter
 
NetApp Oncommand Workflow Automation
 
NetApp Oncommand Insight
 
NetApp Active Iq Unified Manager
 
Canonical Ubuntu Linux
 

Affected Versions

Google LLC Protobuf:

Exploit Probability

EPSS
0.15%
Percentile
35.57%

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.