Race condition in the ssl3_get_new_session_ticket function in ssl/s3_clnt.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b, when used for a multi-threaded client, allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact by providing a NewSessionTicket during an attempt to reuse a ticket that had been obtained earlier.
CVE-2015-1791 is a security vulnerability that . Impacting 1 product from openssl organizations running these solutions should prioritize assessment and patching.
First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2015-06-12T19:59:04.397
2026-06-17T00:23:00.330
Modified
CVSSv2: 6.8 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | openssl | openssl | ≤ 0.9.8zf | Yes |
| Application | openssl | openssl | 1.0.0 | Yes |
| Application | openssl | openssl | 1.0.0 | Yes |
| Application | openssl | openssl | 1.0.0 | Yes |
| Application | openssl | openssl | 1.0.0 | Yes |
| Application | openssl | openssl | 1.0.0 | Yes |
| Application | openssl | openssl | 1.0.0 | Yes |
| Application | openssl | openssl | 1.0.0a | Yes |
| Application | openssl | openssl | 1.0.0b | Yes |
| Application | openssl | openssl | 1.0.0c | Yes |
| Application | openssl | openssl | 1.0.0d | Yes |
| Application | openssl | openssl | 1.0.0e | Yes |
| Application | openssl | openssl | 1.0.0f | Yes |
| Application | openssl | openssl | 1.0.0g | Yes |
| Application | openssl | openssl | 1.0.0h | Yes |
| Application | openssl | openssl | 1.0.0i | Yes |
| Application | openssl | openssl | 1.0.0j | Yes |
| Application | openssl | openssl | 1.0.0k | Yes |
| Application | openssl | openssl | 1.0.0l | Yes |
| Application | openssl | openssl | 1.0.0m | Yes |
| Application | openssl | openssl | 1.0.0n | Yes |
| Application | openssl | openssl | 1.0.0o | Yes |
| Application | openssl | openssl | 1.0.0p | Yes |
| Application | openssl | openssl | 1.0.0q | Yes |
| Application | openssl | openssl | 1.0.0r | Yes |
| Application | openssl | openssl | 1.0.1 | Yes |
| Application | openssl | openssl | 1.0.1 | Yes |
| Application | openssl | openssl | 1.0.1 | Yes |
| Application | openssl | openssl | 1.0.1 | Yes |
| Application | openssl | openssl | 1.0.1a | Yes |
| Application | openssl | openssl | 1.0.1b | Yes |
| Application | openssl | openssl | 1.0.1c | Yes |
| Application | openssl | openssl | 1.0.1d | Yes |
| Application | openssl | openssl | 1.0.1e | Yes |
| Application | openssl | openssl | 1.0.1f | Yes |
| Application | openssl | openssl | 1.0.1g | Yes |
| Application | openssl | openssl | 1.0.1h | Yes |
| Application | openssl | openssl | 1.0.1i | Yes |
| Application | openssl | openssl | 1.0.1j | Yes |
| Application | openssl | openssl | 1.0.1k | Yes |
| Application | openssl | openssl | 1.0.1l | Yes |
| Application | openssl | openssl | 1.0.1m | Yes |
| Application | openssl | openssl | 1.0.2 | Yes |
| Application | openssl | openssl | 1.0.2 | Yes |
| Application | openssl | openssl | 1.0.2a | 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.