A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.
References
| Link | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-11793 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2484914 | Issue Tracking Vendor Advisory |
| https://redhat.atlassian.net/browse/PSIRTSUPT-7600 | Permissions Required |
Configurations
History
15 Jun 2026, 18:34
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://access.redhat.com/security/cve/CVE-2026-11793 - Vendor Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2484914 - Issue Tracking, Vendor Advisory | |
| References | () https://redhat.atlassian.net/browse/PSIRTSUPT-7600 - Permissions Required | |
| First Time |
Redhat 389 Directory Server
Redhat |
|
| CPE | cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:* |
09 Jun 2026, 14:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-09 14:16
Updated : 2026-06-15 18:34
NVD link : CVE-2026-11793
Mitre link : CVE-2026-11793
CVE.ORG link : CVE-2026-11793
JSON object : View
Products Affected
redhat
- 389_directory_server
CWE
CWE-121
Stack-based Buffer Overflow