CVE-2023-2650 Report - Details, Severity, & Advisories
Twingate Team
•
Jan 11, 2024
CVE-2023-2650 is a vulnerability with a medium severity level that affects applications using certain OpenSSL subsystems or the OBJ_obj2txt() function directly. This vulnerability can cause significant delays in processing messages containing specially crafted ASN.1 object identifiers, potentially leading to a Denial of Service (DoS) attack. To mitigate this issue, it is recommended to upgrade to the latest versions of OpenSSL.
How do I know if I'm affected?
If you're using applications that rely on OpenSSL, you might be affected by the vulnerability. This issue can cause significant delays when processing messages containing specially crafted ASN.1 object identifiers, potentially leading to a Denial of Service (DoS) attack. Affected OpenSSL versions include 1.0.2 up to 1.0.2zh, 1.1.1 up to 1.1.1u, 3.0.0 up to 3.0.9, and 3.1.0 up to 3.1.1. Keep in mind that this vulnerability impacts applications using the OBJ_obj2txt() function directly or any of the OpenSSL subsystems like OCSP, PKCS7/SMIME, CMS, CMP/CRMF, or TS without a message size limit.
What should I do if I'm affected?
If you're affected by the vulnerability, it's important to upgrade your OpenSSL version to fix the issue. For OpenSSL 3.0 users, upgrade to 3.0.9; for OpenSSL 3.1 users, upgrade to 3.1.1; for OpenSSL 1.1.1 users, upgrade to 1.1.1u; and for OpenSSL 1.0.2 users (premium support customers only), upgrade to 1.0.2zh. This will help prevent potential Denial of Service attacks caused by the vulnerability.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This issue affects OpenSSL and can cause delays in processing certain data, potentially leading to a Denial of Service. To address this problem, a restriction on the size of OBJECT IDENTIFIERs that can be translated has been implemented, based on RFC 2578. Upgrading to the latest versions of OpenSSL is recommended to mitigate the vulnerability.
Weakness enumeration
The weakness enumeration for this vulnerability is categorized as CWE-770, which deals with resource allocation without limits or throttling. The issue involves processing specially crafted ASN.1 object identifiers, which can cause delays and lead to a Denial of Service.
For more details
CVE-2023-2650 is a medium-severity vulnerability affecting OpenSSL, which can lead to a Denial of Service attack due to delays in processing specially crafted ASN.1 object identifiers. Upgrading to the latest versions of OpenSSL is recommended to mitigate this issue. For a comprehensive understanding of the vulnerability, including its description, severity, technical details, and known affected software configurations, visit the NVD page or the links below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2023-2650 Report - Details, Severity, & Advisories
Twingate Team
•
Jan 11, 2024
CVE-2023-2650 is a vulnerability with a medium severity level that affects applications using certain OpenSSL subsystems or the OBJ_obj2txt() function directly. This vulnerability can cause significant delays in processing messages containing specially crafted ASN.1 object identifiers, potentially leading to a Denial of Service (DoS) attack. To mitigate this issue, it is recommended to upgrade to the latest versions of OpenSSL.
How do I know if I'm affected?
If you're using applications that rely on OpenSSL, you might be affected by the vulnerability. This issue can cause significant delays when processing messages containing specially crafted ASN.1 object identifiers, potentially leading to a Denial of Service (DoS) attack. Affected OpenSSL versions include 1.0.2 up to 1.0.2zh, 1.1.1 up to 1.1.1u, 3.0.0 up to 3.0.9, and 3.1.0 up to 3.1.1. Keep in mind that this vulnerability impacts applications using the OBJ_obj2txt() function directly or any of the OpenSSL subsystems like OCSP, PKCS7/SMIME, CMS, CMP/CRMF, or TS without a message size limit.
What should I do if I'm affected?
If you're affected by the vulnerability, it's important to upgrade your OpenSSL version to fix the issue. For OpenSSL 3.0 users, upgrade to 3.0.9; for OpenSSL 3.1 users, upgrade to 3.1.1; for OpenSSL 1.1.1 users, upgrade to 1.1.1u; and for OpenSSL 1.0.2 users (premium support customers only), upgrade to 1.0.2zh. This will help prevent potential Denial of Service attacks caused by the vulnerability.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This issue affects OpenSSL and can cause delays in processing certain data, potentially leading to a Denial of Service. To address this problem, a restriction on the size of OBJECT IDENTIFIERs that can be translated has been implemented, based on RFC 2578. Upgrading to the latest versions of OpenSSL is recommended to mitigate the vulnerability.
Weakness enumeration
The weakness enumeration for this vulnerability is categorized as CWE-770, which deals with resource allocation without limits or throttling. The issue involves processing specially crafted ASN.1 object identifiers, which can cause delays and lead to a Denial of Service.
For more details
CVE-2023-2650 is a medium-severity vulnerability affecting OpenSSL, which can lead to a Denial of Service attack due to delays in processing specially crafted ASN.1 object identifiers. Upgrading to the latest versions of OpenSSL is recommended to mitigate this issue. For a comprehensive understanding of the vulnerability, including its description, severity, technical details, and known affected software configurations, visit the NVD page or the links below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2023-2650 Report - Details, Severity, & Advisories
Twingate Team
•
Jan 11, 2024
CVE-2023-2650 is a vulnerability with a medium severity level that affects applications using certain OpenSSL subsystems or the OBJ_obj2txt() function directly. This vulnerability can cause significant delays in processing messages containing specially crafted ASN.1 object identifiers, potentially leading to a Denial of Service (DoS) attack. To mitigate this issue, it is recommended to upgrade to the latest versions of OpenSSL.
How do I know if I'm affected?
If you're using applications that rely on OpenSSL, you might be affected by the vulnerability. This issue can cause significant delays when processing messages containing specially crafted ASN.1 object identifiers, potentially leading to a Denial of Service (DoS) attack. Affected OpenSSL versions include 1.0.2 up to 1.0.2zh, 1.1.1 up to 1.1.1u, 3.0.0 up to 3.0.9, and 3.1.0 up to 3.1.1. Keep in mind that this vulnerability impacts applications using the OBJ_obj2txt() function directly or any of the OpenSSL subsystems like OCSP, PKCS7/SMIME, CMS, CMP/CRMF, or TS without a message size limit.
What should I do if I'm affected?
If you're affected by the vulnerability, it's important to upgrade your OpenSSL version to fix the issue. For OpenSSL 3.0 users, upgrade to 3.0.9; for OpenSSL 3.1 users, upgrade to 3.1.1; for OpenSSL 1.1.1 users, upgrade to 1.1.1u; and for OpenSSL 1.0.2 users (premium support customers only), upgrade to 1.0.2zh. This will help prevent potential Denial of Service attacks caused by the vulnerability.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This issue affects OpenSSL and can cause delays in processing certain data, potentially leading to a Denial of Service. To address this problem, a restriction on the size of OBJECT IDENTIFIERs that can be translated has been implemented, based on RFC 2578. Upgrading to the latest versions of OpenSSL is recommended to mitigate the vulnerability.
Weakness enumeration
The weakness enumeration for this vulnerability is categorized as CWE-770, which deals with resource allocation without limits or throttling. The issue involves processing specially crafted ASN.1 object identifiers, which can cause delays and lead to a Denial of Service.
For more details
CVE-2023-2650 is a medium-severity vulnerability affecting OpenSSL, which can lead to a Denial of Service attack due to delays in processing specially crafted ASN.1 object identifiers. Upgrading to the latest versions of OpenSSL is recommended to mitigate this issue. For a comprehensive understanding of the vulnerability, including its description, severity, technical details, and known affected software configurations, visit the NVD page or the links below.