Moderate Vulnerability in Protocol Buffers (protobuf) - Message Parsing Issue
Summary
ALSA-2025:7138: Moderate: protobuf security update. Affects protobuf versions < 3.14.0-16.el9. Fixed in 3.14.0-16.el9. How to fix ↓
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Background
The protobuf package provides Protocol Buffers, which is Google's efficient data interchange format. It allows for the serialization of structured data in a flexible and extensible manner. This package is widely used for data communication between services and applications. However, it has been found to be vulnerable to a message parsing issue that could potentially lead to security risks.
Vulnerability Detail
The vulnerability identified as CVE-2022-1941 pertains to a message parsing flaw in Protocol Buffers. This issue can allow an attacker to craft malicious input that, when processed by the protobuf library, could lead to unexpected behavior or even arbitrary code execution. The vulnerability arises from improper handling of certain message formats, which can be exploited if an application does not validate input data adequately.
How To Fix
Minimum fixed version
3.14.0-16.el9
This is the first release that contains the fix.
sudo dnf update protobufTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, ensure that your application validates all input data before processing it with Protocol Buffers. This can help mitigate the risk of exploitation until the package is updated.
Conclusion
The protobuf package has a moderate vulnerability (CVE-2022-1941) related to message parsing. It is crucial to update to the patched version 3.14.0-16.el9 to safeguard against potential exploits. Until then, validating input data is recommended as a temporary measure.
See every vulnerability recorded for protobuf →
FAQ
CVE-2022-1941 is a security vulnerability in the Protocol Buffers library that involves a message parsing flaw, potentially leading to security breaches.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If exploited, this vulnerability could allow attackers to execute arbitrary code, leading to data breaches or system compromise.
Yes, the patched version of the protobuf package is 3.14.0-16.el9. Updating to this version will resolve the vulnerability.
If immediate updating is not possible, ensure that your application performs strict validation of all input data to mitigate potential risks.
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