CVE-2023-6237 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2023-6237?
CVE-2023-6237 is a medium-severity vulnerability in systems using OpenSSL, particularly those using the function EVP_PKEY_public_check() to check RSA public keys. When an excessively long and invalid RSA public key is checked, it may take a long time to compute, potentially leading to a denial of service. This issue primarily impacts systems using OpenSSL 3.0 and 3.1 FIPS providers, as well as certain versions of NodeJS.
Who is impacted by this?
CVE-2023-6237 affects systems using OpenSSL, particularly those using the EVP_PKEY_public_check() function to check RSA public keys. Applications experiencing long delays when checking keys from untrusted sources may face a denial of service. Affected versions include OpenSSL 3.0 and 3.1 FIPS providers, as well as Node.js 18.x, 20.x, and 21.x release lines.
What to do if CVE-2023-6237 affected you
If you're affected by the CVE-2023-6237 vulnerability, it's important to take action to protect your systems. Follow these steps:
Update NodeJS to the latest version that addresses the vulnerability.
Update OpenSSL to version 3.0.13+quic1.
Regularly check for updates and apply security patches as soon as they are available.
Monitor the NodeJS and OpenSSL projects for any new security advisories and updates.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2023-6237 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This issue involves a denial of service risk when checking excessively long and invalid RSA public keys using OpenSSL. To address this vulnerability, it's important to update affected software and monitor for security advisories and updates.
Weakness Enumeration
The weakness enumeration for this vulnerability is "Insufficient Information," indicating a lack of specific details about the vulnerability and its mitigation.
Learn More
For a comprehensive understanding of this vulnerability, visit the NVD page or refer to the sources below.
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CVE-2023-6237 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2023-6237?
CVE-2023-6237 is a medium-severity vulnerability in systems using OpenSSL, particularly those using the function EVP_PKEY_public_check() to check RSA public keys. When an excessively long and invalid RSA public key is checked, it may take a long time to compute, potentially leading to a denial of service. This issue primarily impacts systems using OpenSSL 3.0 and 3.1 FIPS providers, as well as certain versions of NodeJS.
Who is impacted by this?
CVE-2023-6237 affects systems using OpenSSL, particularly those using the EVP_PKEY_public_check() function to check RSA public keys. Applications experiencing long delays when checking keys from untrusted sources may face a denial of service. Affected versions include OpenSSL 3.0 and 3.1 FIPS providers, as well as Node.js 18.x, 20.x, and 21.x release lines.
What to do if CVE-2023-6237 affected you
If you're affected by the CVE-2023-6237 vulnerability, it's important to take action to protect your systems. Follow these steps:
Update NodeJS to the latest version that addresses the vulnerability.
Update OpenSSL to version 3.0.13+quic1.
Regularly check for updates and apply security patches as soon as they are available.
Monitor the NodeJS and OpenSSL projects for any new security advisories and updates.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2023-6237 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This issue involves a denial of service risk when checking excessively long and invalid RSA public keys using OpenSSL. To address this vulnerability, it's important to update affected software and monitor for security advisories and updates.
Weakness Enumeration
The weakness enumeration for this vulnerability is "Insufficient Information," indicating a lack of specific details about the vulnerability and its mitigation.
Learn More
For a comprehensive understanding of this vulnerability, visit the NVD page or refer to the sources below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2023-6237 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2023-6237?
CVE-2023-6237 is a medium-severity vulnerability in systems using OpenSSL, particularly those using the function EVP_PKEY_public_check() to check RSA public keys. When an excessively long and invalid RSA public key is checked, it may take a long time to compute, potentially leading to a denial of service. This issue primarily impacts systems using OpenSSL 3.0 and 3.1 FIPS providers, as well as certain versions of NodeJS.
Who is impacted by this?
CVE-2023-6237 affects systems using OpenSSL, particularly those using the EVP_PKEY_public_check() function to check RSA public keys. Applications experiencing long delays when checking keys from untrusted sources may face a denial of service. Affected versions include OpenSSL 3.0 and 3.1 FIPS providers, as well as Node.js 18.x, 20.x, and 21.x release lines.
What to do if CVE-2023-6237 affected you
If you're affected by the CVE-2023-6237 vulnerability, it's important to take action to protect your systems. Follow these steps:
Update NodeJS to the latest version that addresses the vulnerability.
Update OpenSSL to version 3.0.13+quic1.
Regularly check for updates and apply security patches as soon as they are available.
Monitor the NodeJS and OpenSSL projects for any new security advisories and updates.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2023-6237 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This issue involves a denial of service risk when checking excessively long and invalid RSA public keys using OpenSSL. To address this vulnerability, it's important to update affected software and monitor for security advisories and updates.
Weakness Enumeration
The weakness enumeration for this vulnerability is "Insufficient Information," indicating a lack of specific details about the vulnerability and its mitigation.
Learn More
For a comprehensive understanding of this vulnerability, visit the NVD page or refer to the sources below.
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