The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.
CVE-2013-1623 is a security vulnerability that . Impacting 1 product from yassl organizations running these solutions should prioritize assessment and patching.
Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2013-02-08T19:55:01.407
2026-04-29T01:13:23.040
Modified
CVSSv2: 4.3 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | yassl | cyassl | ≤ 2.4.6 | Yes |
| Application | yassl | cyassl | 0.2.0 | Yes |
| Application | yassl | cyassl | 0.3.0 | Yes |
| Application | yassl | cyassl | 0.4.0 | Yes |
| Application | yassl | cyassl | 0.5.0 | Yes |
| Application | yassl | cyassl | 0.5.5 | Yes |
| Application | yassl | cyassl | 0.6.0 | Yes |
| Application | yassl | cyassl | 0.6.2 | Yes |
| Application | yassl | cyassl | 0.6.3 | Yes |
| Application | yassl | cyassl | 0.8.0 | Yes |
| Application | yassl | cyassl | 0.9.0 | Yes |
| Application | yassl | cyassl | 0.9.6 | Yes |
| Application | yassl | cyassl | 0.9.8 | Yes |
| Application | yassl | cyassl | 0.9.9 | Yes |
| Application | yassl | cyassl | 1.0.0 | Yes |
| Application | yassl | cyassl | 1.0.0 | Yes |
| Application | yassl | cyassl | 1.0.0 | Yes |
| Application | yassl | cyassl | 1.0.2 | Yes |
| Application | yassl | cyassl | 1.0.3 | Yes |
| Application | yassl | cyassl | 1.0.6 | Yes |
| Application | yassl | cyassl | 1.1.0 | Yes |
| Application | yassl | cyassl | 1.2.0 | Yes |
| Application | yassl | cyassl | 1.3.0 | Yes |
| Application | yassl | cyassl | 1.4.0 | Yes |
| Application | yassl | cyassl | 1.5.0 | Yes |
| Application | yassl | cyassl | 1.5.4 | Yes |
| Application | yassl | cyassl | 1.5.6 | Yes |
| Application | yassl | cyassl | 1.6.0 | Yes |
| Application | yassl | cyassl | 1.6.5 | Yes |
| Application | yassl | cyassl | 1.8.0 | Yes |
| Application | yassl | cyassl | 1.9.0 | Yes |
| Application | yassl | cyassl | 2.0.0 | Yes |
| Application | yassl | cyassl | 2.0.0 | Yes |
| Application | yassl | cyassl | 2.0.0 | Yes |
| Application | yassl | cyassl | 2.0.2 | Yes |
| Application | yassl | cyassl | 2.0.6 | Yes |
| Application | yassl | cyassl | 2.0.8 | Yes |
| Application | yassl | cyassl | 2.2.0 | Yes |
| Application | yassl | cyassl | 2.3.0 | Yes |
| Application | yassl | cyassl | 2.4.0 | 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 yassl'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.