cve-2021-3712 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2021-3712?
CVE-2021-3712 is a high-severity vulnerability in OpenSSL, a widely used software library for secure communication. This vulnerability can lead to out-of-bounds read issues when processing certain strings, potentially causing crashes or the disclosure of sensitive information. Systems using affected versions of OpenSSL (1.1.1-1.1.1k and 1.0.2-1.0.2y) are at risk. Users should upgrade to OpenSSL 1.1.1l or 1.0.2za to mitigate this issue.
Who is impacted by CVE-2021-3712?
CVE-2021-3712 affects users of OpenSSL, particularly those using versions 1.1.1-1.1.1k and 1.0.2-1.0.2y. This vulnerability can lead to crashes or the disclosure of sensitive information, such as private keys or plaintext, due to a read buffer overrun when processing certain strings. Users should be aware of this vulnerability and upgrade to the recommended versions to protect their systems.
What to do if cve-2021-3712 affected you
If you're affected by the CVE-2021-3712 vulnerability, it's crucial to take action to protect your system. To do this, follow these simple steps:
Identify your current OpenSSL version.
If using versions 1.1.1-1.1.1k, upgrade to OpenSSL 1.1.1l.
If you're a premium support customer using versions 1.0.2-1.0.2y, upgrade to OpenSSL 1.0.2za.
Ensure proper NUL termination when constructing ASN1\_STRING structures.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-3712 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. To protect your system, update OpenSSL to version 1.1.1l or 1.0.2za, depending on your current version.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-125, which involves out-of-bounds read issues when processing certain ASN.1 strings in OpenSSL.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, consult the National Vulnerability Database or the resources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
cve-2021-3712 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2021-3712?
CVE-2021-3712 is a high-severity vulnerability in OpenSSL, a widely used software library for secure communication. This vulnerability can lead to out-of-bounds read issues when processing certain strings, potentially causing crashes or the disclosure of sensitive information. Systems using affected versions of OpenSSL (1.1.1-1.1.1k and 1.0.2-1.0.2y) are at risk. Users should upgrade to OpenSSL 1.1.1l or 1.0.2za to mitigate this issue.
Who is impacted by CVE-2021-3712?
CVE-2021-3712 affects users of OpenSSL, particularly those using versions 1.1.1-1.1.1k and 1.0.2-1.0.2y. This vulnerability can lead to crashes or the disclosure of sensitive information, such as private keys or plaintext, due to a read buffer overrun when processing certain strings. Users should be aware of this vulnerability and upgrade to the recommended versions to protect their systems.
What to do if cve-2021-3712 affected you
If you're affected by the CVE-2021-3712 vulnerability, it's crucial to take action to protect your system. To do this, follow these simple steps:
Identify your current OpenSSL version.
If using versions 1.1.1-1.1.1k, upgrade to OpenSSL 1.1.1l.
If you're a premium support customer using versions 1.0.2-1.0.2y, upgrade to OpenSSL 1.0.2za.
Ensure proper NUL termination when constructing ASN1\_STRING structures.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-3712 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. To protect your system, update OpenSSL to version 1.1.1l or 1.0.2za, depending on your current version.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-125, which involves out-of-bounds read issues when processing certain ASN.1 strings in OpenSSL.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, consult the National Vulnerability Database or the resources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
cve-2021-3712 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2021-3712?
CVE-2021-3712 is a high-severity vulnerability in OpenSSL, a widely used software library for secure communication. This vulnerability can lead to out-of-bounds read issues when processing certain strings, potentially causing crashes or the disclosure of sensitive information. Systems using affected versions of OpenSSL (1.1.1-1.1.1k and 1.0.2-1.0.2y) are at risk. Users should upgrade to OpenSSL 1.1.1l or 1.0.2za to mitigate this issue.
Who is impacted by CVE-2021-3712?
CVE-2021-3712 affects users of OpenSSL, particularly those using versions 1.1.1-1.1.1k and 1.0.2-1.0.2y. This vulnerability can lead to crashes or the disclosure of sensitive information, such as private keys or plaintext, due to a read buffer overrun when processing certain strings. Users should be aware of this vulnerability and upgrade to the recommended versions to protect their systems.
What to do if cve-2021-3712 affected you
If you're affected by the CVE-2021-3712 vulnerability, it's crucial to take action to protect your system. To do this, follow these simple steps:
Identify your current OpenSSL version.
If using versions 1.1.1-1.1.1k, upgrade to OpenSSL 1.1.1l.
If you're a premium support customer using versions 1.0.2-1.0.2y, upgrade to OpenSSL 1.0.2za.
Ensure proper NUL termination when constructing ASN1\_STRING structures.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-3712 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. To protect your system, update OpenSSL to version 1.1.1l or 1.0.2za, depending on your current version.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-125, which involves out-of-bounds read issues when processing certain ASN.1 strings in OpenSSL.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, consult the National Vulnerability Database or the resources listed below.
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