Vulnerability Intelligence Report
CVE-2021-38604
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:3.04%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-476 ↗CWE-476 NULL Pointer Dereference
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| gnu | glibc | all |
| fedoraproject | fedora | 35 |
| oracle | communications_cloud_native_core_binding_support_function | 22.1.3 |
| oracle | communications_cloud_native_core_network_function_cloud_native_environment | 22.1.0 |
| oracle | communications_cloud_native_core_network_repository_function | 22.1.2, 22.2.0 |
| oracle | communications_cloud_native_core_security_edge_protection_proxy | 22.1.1 |
| oracle | communications_cloud_native_core_unified_data_repository | 22.2.0 |
| oracle | enterprise_operations_monitor | 4.3, 4.4, 5.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
3.045%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-08-12T00:00:00 |
| Published | 2021-08-12T15:43:34 |
| Last Updated | 2025-05-30T19:48:04 |
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