Memory Leak Vulnerability in Privoxy
Summary
CVE-2021-44542: A memory leak vulnerability was found in Privoxy when handling errors. Affects privoxy versions < 3.0.33-r0. Fixed in 3.0.33-r0. How to fix ↓
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Background
Privoxy is an open-source web proxy server that provides advanced filtering capabilities for enhancing privacy, security, and anonymity while browsing the internet. It acts as an intermediary between the user's device and the web server, filtering and modifying web page content according to predefined rules. Privoxy is widely used to block ads, remove tracking cookies, and protect against various web-based threats.
Vulnerability Detail
The identified vulnerability in Privoxy is a memory leak issue that occurs when handling errors. A memory leak refers to a situation where a program fails to release memory that is no longer needed, leading to a gradual depletion of available memory resources. In this case, the memory leak vulnerability could potentially result in excessive memory consumption, causing the Privoxy server to become unresponsive or crash. An attacker could potentially exploit this vulnerability to launch denial-of-service attacks or gain unauthorized access to sensitive information.
How To Fix
Minimum fixed version
3.0.33-r0
This is the first release that contains the fix.
sudo apk add --upgrade privoxyTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No specific workaround has been mentioned for this vulnerability. It is advised to apply the recommended fix by updating Privoxy to the latest version.
Conclusion
The memory leak vulnerability in Privoxy can be mitigated by updating the software to the latest version. It is crucial to promptly apply the recommended fix to ensure the stability and security of the Privoxy server. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for privoxy →
FAQ
Privoxy is an open-source web proxy server that enhances privacy, security, and anonymity while browsing the internet. It filters and modifies web page content based on predefined rules.
A memory leak vulnerability occurs when a program fails to release memory that is no longer needed, leading to excessive memory consumption and potential system instability.
The memory leak vulnerability in Privoxy could result in excessive memory consumption, causing the server to become unresponsive or crash. It may also be exploited by attackers for launching denial-of-service attacks or unauthorized access to sensitive information.
To fix this vulnerability, update Privoxy to version 3.0.33-r0 or later by following the official upgrade instructions provided by the Privoxy project.
No specific workaround has been mentioned for this vulnerability. It is recommended to apply the recommended fix by updating Privoxy to the latest version.
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