Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-4160


There is a carry propagation bug in the MIPS32 and MIPS64 squaring procedure. Many EC algorithms are affected, including some of the TLS 1.3 default curves. Impact was not analyzed in detail, because the pre-requisites for attack are considered unlikely and include reusing private keys. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH private key among multiple clients, which is no longer an option since CVE-2016-0701. This issue affects OpenSSL versions 1.0.2, 1.1.1 and 3.0.0. It was addressed in the releases of 1.1.1m and 3.0.1 on the 15th of December 2021. For the 1.0.2 release it is addressed in git commit 6fc1aaaf3 that is available to premium support customers only. It will be made available in 1.0.2zc when it is released. The issue only affects OpenSSL on MIPS platforms. Fixed in OpenSSL 3.0.1 (Affected 3.0.0). Fixed in OpenSSL 1.1.1m (Affected 1.1.1-1.1.1l). Fixed in OpenSSL 1.0.2zc-dev (Affected 1.0.2-1.0.2zb).


Security Impact Summary

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 confidentiality (data exposure), for affected systems. Impacting 8 products from openssl, from debian, from oracle and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, 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.


Published

2022-01-28T22:15:15.133

Last Modified

2024-11-21T06:37:02.273

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl ≤ 1.0.2zb Yes
Application openssl openssl < 1.1.1m Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Application openssl openssl 3.0.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System debian debian_linux 10.0 Yes
Operating System debian debian_linux 11.0 Yes
Application oracle health_sciences_inform_publisher 6.2.1.1 Yes
Application oracle health_sciences_inform_publisher 6.3.1.1 Yes
Application oracle jd_edwards_enterpriseone_tools 9.2.6.3 Yes
Application oracle jd_edwards_world_security a9.4 Yes
Application oracle peoplesoft_enterprise_peopletools 8.58 Yes
Application oracle peoplesoft_enterprise_peopletools 8.59 Yes
Application siemens sinec_ins < 1.0 Yes
Application siemens sinec_ins 1.0 Yes
Application siemens sinec_ins 1.0 Yes
Application oracle enterprise_manager_ops_center 12.4.0.0 Yes

References

How SecUtils Interprets This CVE

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.