SUBJECT: Mitigation Instructions for CVE-2002-0656: Buffer Overflow in OpenSSL versions 0.9.6d and earlier and 0.9.7-beta2 and earlier
TECH STACK: OpenSSL versions 0.9.6d and earlier and 0.9.7-beta2 and earlier.
DATE(S) ISSUED: 08/12/2002
NVD Last Modified: 09/10/2008
CRITICALITY: HIGH (7.5)
OVERVIEW:
CVE-2002-0656 is a critical vulnerability in OpenSSL versions 0.9.6d and earlier and 0.9.7-beta2 and earlier. This vulnerability allows remote attackers to execute arbitrary code on affected systems via buffer overflows in the handling of large client master keys in SSL2 and large session IDs in SSL3.
SOLUTION/MITIGATION:
The recommended solution to mitigate this vulnerability is to upgrade to a non-vulnerable version of OpenSSL. You can find the latest version and download instructions on the OpenSSL website
Here are the specific steps to take:
- Identify the version of OpenSSL currently in use: This information can often be found in system documentation, server logs, or by running the "openssl" version command.
- Verify if your version is vulnerable: Check the list of known affected software configurations in the NVD report for CVE-2002-0656.
- Download and install the latest non-vulnerable version of OpenSSL: Follow the instructions provided on the OpenSSL website.
- Restart any services that rely on OpenSSL: This ensures that the changes take effect.
Confirmation & Additional Information:
- It is important to test the updated version of OpenSSL thoroughly before deploying it to a production environment.
- If you are unable to upgrade to a non-vulnerable version of OpenSSL immediately, consider disabling SSL2 and SSL3 to mitigate the risk. However, this is not a long-term solution as these protocols are considered insecure.
- Keep your systems and software up to date with the latest security patches to minimize the risk of exploitation.
References:
National Vulnerability Database (NVD):