CVE-2021-38604

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

12/08/2021

Last modified:

30/05/2025

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:gnu:glibc::::::::		2.34 (including)
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.1.2:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.2.0:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:22.1.1:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:22.2.0:::::::*
cpe:2.3:a:oracle:enterprise_operations_monitor:4.3:::::::*
cpe:2.3:a:oracle:enterprise_operations_monitor:4.4:::::::*
cpe:2.3:a:oracle:enterprise_operations_monitor:5.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:gnu:glibc::::::::		2.34 (including)
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.1.2:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.2.0:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:22.1.1:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:22.2.0:::::::*
cpe:2.3:a:oracle:enterprise_operations_monitor:4.3:::::::*
cpe:2.3:a:oracle:enterprise_operations_monitor:4.4:::::::*
cpe:2.3:a:oracle:enterprise_operations_monitor:5.0:::::::*

CVE-2021-38604

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools