Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown vectors.
This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.7, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 5 products from openbsd, from ssh, from ssh and 2 others, organizations running these solutions should prioritize assessment and patching.
Originally identified in 2008, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2008-11-19T17:30:00.670
2026-05-28T19:16:22.650
Modified
CVSSv3.1: 3.7 (LOW)
AV:N/AC:H/Au:N/C:P/I:N/A:N
4.9
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | openbsd | openssh | 4.7p1 | Yes |
| Application | ssh | tectia_client | 4.0 | Yes |
| Application | ssh | tectia_client | 4.0.1 | Yes |
| Application | ssh | tectia_client | 4.0.3 | Yes |
| Application | ssh | tectia_client | 4.0.4 | Yes |
| Application | ssh | tectia_client | 4.0.5 | Yes |
| Application | ssh | tectia_client | 4.2 | Yes |
| Application | ssh | tectia_client | 4.2.1 | Yes |
| Application | ssh | tectia_client | 4.3 | Yes |
| Application | ssh | tectia_client | 4.3.1 | Yes |
| Application | ssh | tectia_client | 4.3.1j | Yes |
| Application | ssh | tectia_client | 4.3.2 | Yes |
| Application | ssh | tectia_client | 4.3.2j | Yes |
| Application | ssh | tectia_client | 4.3.3 | Yes |
| Application | ssh | tectia_client | 4.3.4 | Yes |
| Application | ssh | tectia_client | 4.3.5 | Yes |
| Application | ssh | tectia_client | 4.3.6 | Yes |
| Application | ssh | tectia_client | 4.3.7 | Yes |
| Application | ssh | tectia_client | 4.3.8k | Yes |
| Application | ssh | tectia_client | 4.3.9k | Yes |
| Application | ssh | tectia_client | 4.4 | Yes |
| Application | ssh | tectia_client | 4.4.1 | Yes |
| Application | ssh | tectia_client | 4.4.2 | Yes |
| Application | ssh | tectia_client | 4.4.3 | Yes |
| Application | ssh | tectia_client | 4.4.4 | Yes |
| Application | ssh | tectia_client | 4.4.6 | Yes |
| Application | ssh | tectia_client | 4.4.7 | Yes |
| Application | ssh | tectia_client | 4.4.8 | Yes |
| Application | ssh | tectia_client | 4.4.9 | Yes |
| Application | ssh | tectia_client | 4.4.10 | Yes |
| Application | ssh | tectia_client | 4.4.11 | Yes |
| Application | ssh | tectia_client | 5.0.0 | Yes |
| Application | ssh | tectia_client | 5.0.0f | Yes |
| Application | ssh | tectia_client | 5.0.1 | Yes |
| Application | ssh | tectia_client | 5.0.1f | Yes |
| Application | ssh | tectia_client | 5.0.2 | Yes |
| Application | ssh | tectia_client | 5.0.2f | Yes |
| Application | ssh | tectia_client | 5.0.3 | Yes |
| Application | ssh | tectia_client | 5.0.3f | Yes |
| Application | ssh | tectia_client | 5.1.0 | Yes |
| Application | ssh | tectia_client | 5.1.1 | Yes |
| Application | ssh | tectia_client | 5.1.2 | Yes |
| Application | ssh | tectia_client | 5.1.3 | Yes |
| Application | ssh | tectia_client | 5.2.0 | Yes |
| Application | ssh | tectia_client | 5.2.1 | Yes |
| Application | ssh | tectia_client | 5.2.2 | Yes |
| Application | ssh | tectia_client | 5.2.3 | Yes |
| Application | ssh | tectia_client | 5.2.4 | Yes |
| Application | ssh | tectia_client | 5.3.0 | Yes |
| Application | ssh | tectia_client | 5.3.1 | Yes |
| Application | ssh | tectia_client | 5.3.2 | Yes |
| Application | ssh | tectia_client | 5.3.3 | Yes |
| Application | ssh | tectia_client | 5.3.5 | Yes |
| Application | ssh | tectia_client | 5.3.6 | Yes |
| Application | ssh | tectia_client | 5.3.7 | Yes |
| Application | ssh | tectia_client | 5.3.8 | Yes |
| Application | ssh | tectia_client | 6.0.0 | Yes |
| Application | ssh | tectia_client | 6.0.1 | Yes |
| Application | ssh | tectia_client | 6.0.2 | Yes |
| Application | ssh | tectia_client | 6.0.3 | Yes |
| Application | ssh | tectia_client | 6.0.4 | Yes |
| Application | ssh | tectia_connector | 4.0.7 | Yes |
| Application | ssh | tectia_connector | 4.1.2 | Yes |
| Application | ssh | tectia_connector | 4.1.3 | Yes |
| Application | ssh | tectia_connector | 4.1.5 | Yes |
| Application | ssh | tectia_connector | 4.2.0 | Yes |
| Application | ssh | tectia_connector | 4.3.0 | Yes |
| Application | ssh | tectia_connector | 4.3.4 | Yes |
| Application | ssh | tectia_connector | 4.3.5 | Yes |
| Application | ssh | tectia_connector | 4.4.0 | Yes |
| Application | ssh | tectia_connector | 4.4.2 | Yes |
| Application | ssh | tectia_connector | 4.4.4 | Yes |
| Application | ssh | tectia_connector | 4.4.6 | Yes |
| Application | ssh | tectia_connector | 4.4.7 | Yes |
| Application | ssh | tectia_connector | 4.4.9 | Yes |
| Application | ssh | tectia_connector | 4.4.10 | Yes |
| Application | ssh | tectia_connector | 5.0.0 | Yes |
| Application | ssh | tectia_connector | 5.0.1 | Yes |
| Application | ssh | tectia_connector | 5.0.2 | Yes |
| Application | ssh | tectia_connector | 5.0.3 | Yes |
| Application | ssh | tectia_connector | 5.1.0 | Yes |
| Application | ssh | tectia_connector | 5.1.1 | Yes |
| Application | ssh | tectia_connector | 5.1.2 | Yes |
| Application | ssh | tectia_connector | 5.1.3 | Yes |
| Application | ssh | tectia_connector | 5.2.2 | Yes |
| Application | ssh | tectia_connector | 5.3.0 | Yes |
| Application | ssh | tectia_connector | 5.3.1 | Yes |
| Application | ssh | tectia_connector | 5.3.2 | Yes |
| Application | ssh | tectia_connector | 5.3.3 | Yes |
| Application | ssh | tectia_connector | 5.3.7 | Yes |
| Application | ssh | tectia_connector | 5.3.8 | Yes |
| Application | ssh | tectia_connectsecure | 6.0.0 | Yes |
| Application | ssh | tectia_connectsecure | 6.0.1 | Yes |
| Application | ssh | tectia_connectsecure | 6.0.2 | Yes |
| Application | ssh | tectia_connectsecure | 6.0.3 | Yes |
| Application | ssh | tectia_connectsecure | 6.0.4 | Yes |
| Application | ssh | tectia_server | 4.0 | Yes |
| Application | ssh | tectia_server | 4.0.3 | Yes |
| Application | ssh | tectia_server | 4.0.4 | Yes |
| Application | ssh | tectia_server | 4.0.5 | Yes |
| Application | ssh | tectia_server | 4.0.7 | Yes |
| Application | ssh | tectia_server | 4.1.2 | Yes |
| Application | ssh | tectia_server | 4.1.3 | Yes |
| Application | ssh | tectia_server | 4.1.5 | Yes |
| Application | ssh | tectia_server | 4.2.0 | Yes |
| Application | ssh | tectia_server | 4.2.1 | Yes |
| Application | ssh | tectia_server | 4.2.2 | Yes |
| Application | ssh | tectia_server | 4.3 | Yes |
| Application | ssh | tectia_server | 4.3.0 | Yes |
| Application | ssh | tectia_server | 4.3.1 | Yes |
| Application | ssh | tectia_server | 4.3.2 | Yes |
| Application | ssh | tectia_server | 4.3.3 | Yes |
| Application | ssh | tectia_server | 4.3.4 | Yes |
| Application | ssh | tectia_server | 4.3.5 | Yes |
| Application | ssh | tectia_server | 4.3.6 | Yes |
| Application | ssh | tectia_server | 4.3.7 | Yes |
| Application | ssh | tectia_server | 4.4 | Yes |
| Application | ssh | tectia_server | 4.4.0 | Yes |
| Application | ssh | tectia_server | 4.4.1 | Yes |
| Application | ssh | tectia_server | 4.4.2 | Yes |
| Application | ssh | tectia_server | 4.4.4 | Yes |
| Application | ssh | tectia_server | 4.4.5 | Yes |
| Application | ssh | tectia_server | 4.4.6 | Yes |
| Application | ssh | tectia_server | 4.4.7 | Yes |
| Application | ssh | tectia_server | 4.4.8 | Yes |
| Application | ssh | tectia_server | 4.4.9 | Yes |
| Application | ssh | tectia_server | 4.4.10 | Yes |
| Application | ssh | tectia_server | 4.4.11 | Yes |
| Application | ssh | tectia_server | 5.0.0 | Yes |
| Application | ssh | tectia_server | 5.0.1 | Yes |
| Application | ssh | tectia_server | 5.0.2 | Yes |
| Application | ssh | tectia_server | 5.0.3 | Yes |
| Application | ssh | tectia_server | 5.1.0 | Yes |
| Application | ssh | tectia_server | 5.1.1 | Yes |
| Application | ssh | tectia_server | 5.1.1 | Yes |
| Application | ssh | tectia_server | 5.1.2 | Yes |
| Application | ssh | tectia_server | 5.1.3 | Yes |
| Application | ssh | tectia_server | 5.2.0 | Yes |
| Application | ssh | tectia_server | 5.2.0 | Yes |
| Application | ssh | tectia_server | 5.2.1 | Yes |
| Application | ssh | tectia_server | 5.2.2 | Yes |
| Application | ssh | tectia_server | 5.2.2 | Yes |
| Application | ssh | tectia_server | 5.2.3 | Yes |
| Application | ssh | tectia_server | 5.2.4 | Yes |
| Application | ssh | tectia_server | 5.3.0 | Yes |
| Application | ssh | tectia_server | 5.3.0 | Yes |
| Application | ssh | tectia_server | 5.3.1 | Yes |
| Application | ssh | tectia_server | 5.3.2 | Yes |
| Application | ssh | tectia_server | 5.3.3 | Yes |
| Application | ssh | tectia_server | 5.3.4 | Yes |
| Application | ssh | tectia_server | 5.3.5 | Yes |
| Application | ssh | tectia_server | 5.3.6 | Yes |
| Application | ssh | tectia_server | 5.3.7 | Yes |
| Application | ssh | tectia_server | 5.3.8 | Yes |
| Application | ssh | tectia_server | 5.4.0 | Yes |
| Application | ssh | tectia_server | 5.4.1 | Yes |
| Application | ssh | tectia_server | 5.4.2 | Yes |
| Application | ssh | tectia_server | 5.5.0 | Yes |
| Application | ssh | tectia_server | 5.5.1 | Yes |
| Application | ssh | tectia_server | 6.0.0 | Yes |
| Application | ssh | tectia_server | 6.0.0 | Yes |
| Application | ssh | tectia_server | 6.0.1 | Yes |
| Application | ssh | tectia_server | 6.0.1 | Yes |
| Application | ssh | tectia_server | 6.0.2 | Yes |
| Application | ssh | tectia_server | 6.0.3 | Yes |
| Application | ssh | tectia_server | 6.0.4 | Yes |
| Application | ssh | tectia_server | 6.0.4 | 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 openbsd'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.