Red Hat Security Advisory: redhat-ds:11 security update
Red Hat Directory Server is an LDAPv3-compliant directory server. The suite of packages includes the Lightweight Directory Access Protocol (LDAP) server, as well as command-line utilities and Web UI packages for server administration. Security Fix(es): * 389-ds-base: a heap overflow leading to denail-of-servce while writing a value larger than 256 chars (in log_entry_attr) (CVE-2024-1062) * 389-ds-base: Malformed userPassword may cause crash at do_modify in slapd/modify.c (CVE-2024-2199) * 389-ds-base: potential denial of service via specially crafted kerberos AS-REQ request (CVE-2024-3657) * 389-ds-base: Malformed userPassword hash may cause Denial of Service (CVE-2024-5953) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
Red Hat Directory Server 11.5 for RHEL 8.6 includes the 389-ds-base LDAP server component, which was found vulnerable to several security issues: a heap overflow when writing values larger than 256 characters (CVE-2024-1062), crashes caused by malformed userPassword attributes (CVE-2024-2199 and CVE-2024-5953), and a denial of service via specially crafted Kerberos AS-REQ requests (CVE-2024-3657). These vulnerabilities can lead to denial of service conditions. Red Hat has issued an important security advisory (RHSA-2025:1632) with updates to fix these flaws.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service by crashing the LDAP server or exhausting memory via heap overflow. The issues arise from improper handling of oversized or malformed input data, including userPassword attributes and Kerberos requests. There is no indication of remote code execution or data disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
Red Hat has released an official security update for Red Hat Directory Server 11.5 on RHEL 8.6 that addresses these vulnerabilities. Users should apply the update as detailed in Red Hat advisory RHSA-2025:1632 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified or required beyond applying the provided patch.
Red Hat Security Advisory: redhat-ds:11 security update
Description
Red Hat Directory Server is an LDAPv3-compliant directory server. The suite of packages includes the Lightweight Directory Access Protocol (LDAP) server, as well as command-line utilities and Web UI packages for server administration. Security Fix(es): * 389-ds-base: a heap overflow leading to denail-of-servce while writing a value larger than 256 chars (in log_entry_attr) (CVE-2024-1062) * 389-ds-base: Malformed userPassword may cause crash at do_modify in slapd/modify.c (CVE-2024-2199) * 389-ds-base: potential denial of service via specially crafted kerberos AS-REQ request (CVE-2024-3657) * 389-ds-base: Malformed userPassword hash may cause Denial of Service (CVE-2024-5953) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Directory Server 11.5 for RHEL 8.6 includes the 389-ds-base LDAP server component, which was found vulnerable to several security issues: a heap overflow when writing values larger than 256 characters (CVE-2024-1062), crashes caused by malformed userPassword attributes (CVE-2024-2199 and CVE-2024-5953), and a denial of service via specially crafted Kerberos AS-REQ requests (CVE-2024-3657). These vulnerabilities can lead to denial of service conditions. Red Hat has issued an important security advisory (RHSA-2025:1632) with updates to fix these flaws.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service by crashing the LDAP server or exhausting memory via heap overflow. The issues arise from improper handling of oversized or malformed input data, including userPassword attributes and Kerberos requests. There is no indication of remote code execution or data disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
Red Hat has released an official security update for Red Hat Directory Server 11.5 on RHEL 8.6 that addresses these vulnerabilities. Users should apply the update as detailed in Red Hat advisory RHSA-2025:1632 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified or required beyond applying the provided patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:1632
- Cve Count
- 4
- Additional Cves
- ["CVE-2024-2199","CVE-2024-3657","CVE-2024-5953"]
- Cvss Version
- null
Threat ID: 6a3e805bcef61ccff9700847
Added to database: 06/26/2026, 13:36:27 UTC
Last enriched: 06/26/2026, 13:40:51 UTC
Last updated: 06/27/2026, 10:51:10 UTC
Views: 2
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