389-ds-base: 389-ds-base: remote code execution and denial of service via heap buffer overflow

7.2 CVSS

Vulnerability Description

A flaw was found in the 389-ds-base server. A heap buffer overflow vulnerability exists in the `schema_attr_enum_callback` function within the `schema.c` file. This occurs because the code incorrectly calculates the buffer size by summing alias string lengths without accounting for additional formatting characters. When a large number of aliases are processed, this oversight can lead to a heap overflow, potentially allowing a remote attacker to cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

This issue was discovered by Red Hat Security Research Team (Red Hat Inc.).

References

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Affected Vendor

Red Hat

View all reports →

Affected Software

Red Hat Directory Server 11.5 E4S for RHEL 8, Red Hat Directory Server 11.7 E4S for RHEL 8, Red Hat Directory Server 11.9 for RHEL 8, Red Hat Directory Server 12.2 E4S for RHEL 9, Red Hat Directory Server 12.4 EUS for RHEL 9, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Directory Server 13.1, Red Hat Directory Server 12, Red Hat Directory Server 13, Red Hat Enterprise Linux 6

Vulnerable Versions:

8060020260303152239.0ca98e7e, 8080020260227193008.f969626e, 8100020260312105752.37ed7c03, 9020020260304180546.1674d574, 9040020260225135630.1674d574, 0:3.1.3-7.el10_1, 0:3.0.6-17.el10_0, 0:1.3.11.1-11.el7_9, 8100020260312103235.25e700aa, 8020020260303204738.dbc46ba7, 8040020260303172348.96015a92, 8060020260303144613.824efc52, 8080020260227183930.6dbb3803, 0:2.7.0-10.el9_7, 0:2.0.14-5.el9_0, 0:2.2.4-17.el9_2, 0:2.4.5-24.el9_4, 0:2.6.1-20.el9_6, 1772040913