Critical Remote Exploits in OpenSSL 0.9.4 - DSA-136-3

openssl094 Updated 02 Oct 2025

Summary

17/09/2002
N/A
Yes i
Unrated
Not published

DSA-136-3: openssl - multiple remote exploits. Affects openssl094 versions < 0.9.4-6.woody.2. Fixed in 0.9.4-6.woody.2. How to fix ↓

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Background

OpenSSL is a widely-used library that provides cryptographic functions and secure communication protocols. Version 0.9.4 is part of the Debian 3.0 ecosystem and is known for its role in securing data transmission over networks. However, this version has been identified with multiple vulnerabilities that could allow remote attackers to exploit systems utilizing this library.

Vulnerability Detail

The vulnerabilities identified in OpenSSL 0.9.4 include several remote exploits (CVE-2002-0655, CVE-2002-0656, CVE-2002-0657, CVE-2002-0659) that could allow attackers to execute arbitrary code or cause denial of service. These vulnerabilities stem from flaws in the handling of certain cryptographic operations and could lead to severe security breaches if left unaddressed.

How To Fix

Minimum fixed version

0.9.4-6.woody.2

This is the first release that contains the fix.

sudo apt-get install --only-upgrade openssl094

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Workaround

As a temporary measure, consider disabling the use of the affected OpenSSL version in your applications until the patch can be applied. This may involve reconfiguring your software to use an alternative cryptographic library or an updated version of OpenSSL.

Conclusion

The vulnerabilities in OpenSSL 0.9.4 pose significant risks to systems relying on this library for secure communications. It is crucial to apply the available patch to mitigate these risks and ensure the security of your applications.

See every vulnerability recorded for openssl094 →

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FAQ

OpenSSL is an open-source software library that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols for secure communication over computer networks.

Exploiting these vulnerabilities could allow attackers to execute arbitrary code, leading to unauthorized access, data breaches, or denial of service.

You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.

Yes, you can temporarily disable the use of the affected OpenSSL version in your applications or switch to an alternative cryptographic library until the patch is applied.

It is recommended to regularly check for updates and apply them promptly to ensure that your software is protected against known vulnerabilities.

Related vulnerabilities

Recent vulnerabilities recorded for openssl094.

How To Fix

Minimum fixed version

0.9.4-6.woody.2

This is the first release that contains the fix.

sudo apt-get install --only-upgrade openssl094

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