Vulnerability Monitor

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CVE-2021-3998


A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 12 products from gnu, from netapp, from netapp and 9 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

2022-08-24T16:15:09.010

Last Modified

2025-06-09T15:15:26.377

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-125
  • Type: Secondary
    CWE-252

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu glibc < 2.35 Yes
Application netapp ontap_select_deploy_administration_utility - Yes
Operating System netapp h300s_firmware - Yes
Hardware netapp h300s - No
Operating System netapp h500s_firmware - Yes
Hardware netapp h500s - No
Operating System netapp h700s_firmware - Yes
Hardware netapp h700s - No
Operating System netapp h410s_firmware - Yes
Hardware netapp h410s - No
Operating System netapp h410c_firmware - Yes
Hardware netapp h410c - No

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 gnu'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.