The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, 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 and availability (service disruption) for affected systems. Impacting 23 products from openssl, from debian, from tenable and 20 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, 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.
2021-02-16T17:15:13.377
2024-11-21T05:51:55.460
Modified
CVSSv3.1: 5.9 (MEDIUM)
AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | openssl | openssl | < 1.0.2y | Yes |
| Application | openssl | openssl | < 1.1.1j | Yes |
| Operating System | debian | debian_linux | 10.0 | Yes |
| Application | tenable | nessus_network_monitor | 5.11.0 | Yes |
| Application | tenable | nessus_network_monitor | 5.11.1 | Yes |
| Application | tenable | nessus_network_monitor | 5.12.0 | Yes |
| Application | tenable | nessus_network_monitor | 5.12.1 | Yes |
| Application | tenable | nessus_network_monitor | 5.13.0 | Yes |
| Application | tenable | tenable.sc | ≤ 5.17.0 | Yes |
| Application | apple | safari | < 14.1.1 | Yes |
| Operating System | apple | ipados | < 14.6 | Yes |
| Operating System | apple | iphone_os | < 14.6 | Yes |
| Operating System | apple | macos | < 11.4 | Yes |
| Application | netapp | oncommand_insight | - | Yes |
| Application | netapp | oncommand_workflow_automation | - | Yes |
| Application | netapp | snapcenter | - | Yes |
| Application | oracle | business_intelligence | 5.5.0.0.0 | Yes |
| Application | oracle | business_intelligence | 5.9.0.0.0 | Yes |
| Application | oracle | business_intelligence | 12.2.1.3.0 | Yes |
| Application | oracle | business_intelligence | 12.2.1.4.0 | Yes |
| Application | oracle | communications_cloud_native_core_policy | 1.15.0 | Yes |
| Application | oracle | enterprise_manager_for_storage_management | 13.4.0.0 | Yes |
| Application | oracle | enterprise_manager_ops_center | 12.4.0.0 | Yes |
| Application | oracle | essbase | 21.2 | Yes |
| Application | oracle | graalvm | 19.3.5 | Yes |
| Application | oracle | graalvm | 20.3.1.2 | Yes |
| Application | oracle | graalvm | 21.0.0.2 | Yes |
| Application | oracle | jd_edwards_world_security | a9.4 | Yes |
| Application | oracle | mysql_enterprise_monitor | < 8.0.23 | Yes |
| Application | oracle | mysql_server | < 5.7.33 | Yes |
| Application | oracle | mysql_server | < 8.0.23 | Yes |
| Application | oracle | peoplesoft_enterprise_peopletools | 8.57 | Yes |
| Application | oracle | peoplesoft_enterprise_peopletools | 8.58 | Yes |
| Application | oracle | peoplesoft_enterprise_peopletools | 8.59 | Yes |
| Application | oracle | zfs_storage_appliance_kit | 8.8 | Yes |
| Application | siemens | sinec_ins | < 1.0 | Yes |
| Application | siemens | sinec_ins | 1.0 | Yes |
| Application | siemens | sinec_ins | 1.0 | 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 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.