Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter value can also trigger an overly long computation during some of these checks. A correct q value, if present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the "-check" option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and limited availability for affected systems. Impacting 1 product from openssl organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-07-31T16:15:10.497
2025-05-05T16:15:47.343
Modified
CVSSv3.1: 5.3 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | openssl | openssl | < 3.0.10 | Yes |
| Application | openssl | openssl | < 3.1.2 | Yes |
| Application | openssl | openssl | 1.0.2 | Yes |
| Application | openssl | openssl | 1.0.2 | Yes |
| Application | openssl | openssl | 1.0.2 | Yes |
| Application | openssl | openssl | 1.0.2 | Yes |
| Application | openssl | openssl | 1.0.2a | Yes |
| Application | openssl | openssl | 1.0.2b | Yes |
| Application | openssl | openssl | 1.0.2c | Yes |
| Application | openssl | openssl | 1.0.2d | Yes |
| Application | openssl | openssl | 1.0.2e | Yes |
| Application | openssl | openssl | 1.0.2f | Yes |
| Application | openssl | openssl | 1.0.2g | Yes |
| Application | openssl | openssl | 1.0.2h | Yes |
| Application | openssl | openssl | 1.0.2i | Yes |
| Application | openssl | openssl | 1.0.2j | Yes |
| Application | openssl | openssl | 1.0.2k | Yes |
| Application | openssl | openssl | 1.0.2l | Yes |
| Application | openssl | openssl | 1.0.2m | Yes |
| Application | openssl | openssl | 1.0.2n | Yes |
| Application | openssl | openssl | 1.0.2o | Yes |
| Application | openssl | openssl | 1.0.2p | Yes |
| Application | openssl | openssl | 1.0.2q | Yes |
| Application | openssl | openssl | 1.0.2r | Yes |
| Application | openssl | openssl | 1.0.2s | Yes |
| Application | openssl | openssl | 1.0.2t | Yes |
| Application | openssl | openssl | 1.0.2u | Yes |
| Application | openssl | openssl | 1.0.2v | Yes |
| Application | openssl | openssl | 1.0.2w | Yes |
| Application | openssl | openssl | 1.0.2x | Yes |
| Application | openssl | openssl | 1.0.2y | Yes |
| Application | openssl | openssl | 1.0.2za | Yes |
| Application | openssl | openssl | 1.0.2zb | Yes |
| Application | openssl | openssl | 1.0.2zc | Yes |
| Application | openssl | openssl | 1.0.2zd | Yes |
| Application | openssl | openssl | 1.0.2ze | Yes |
| Application | openssl | openssl | 1.0.2zf | Yes |
| Application | openssl | openssl | 1.0.2zg | Yes |
| Application | openssl | openssl | 1.0.2zh | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1 | Yes |
| Application | openssl | openssl | 1.1.1a | Yes |
| Application | openssl | openssl | 1.1.1b | Yes |
| Application | openssl | openssl | 1.1.1c | Yes |
| Application | openssl | openssl | 1.1.1d | Yes |
| Application | openssl | openssl | 1.1.1e | Yes |
| Application | openssl | openssl | 1.1.1f | Yes |
| Application | openssl | openssl | 1.1.1g | Yes |
| Application | openssl | openssl | 1.1.1h | Yes |
| Application | openssl | openssl | 1.1.1i | Yes |
| Application | openssl | openssl | 1.1.1j | Yes |
| Application | openssl | openssl | 1.1.1k | Yes |
| Application | openssl | openssl | 1.1.1l | Yes |
| Application | openssl | openssl | 1.1.1m | Yes |
| Application | openssl | openssl | 1.1.1n | Yes |
| Application | openssl | openssl | 1.1.1o | Yes |
| Application | openssl | openssl | 1.1.1p | Yes |
| Application | openssl | openssl | 1.1.1q | Yes |
| Application | openssl | openssl | 1.1.1r | Yes |
| Application | openssl | openssl | 1.1.1s | Yes |
| Application | openssl | openssl | 1.1.1t | Yes |
| Application | openssl | openssl | 1.1.1u | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For openssl's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.