4.9
Medium
CVE-2026-11790 389-ds-base: 389-ds-base: pbkdf2 password storage plugin unbounded iteration count denial of service
Description
A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password storage plugin does not enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user's password hash can cause excessive CPU consumption during authentication, resulting in denial of service.
CVSS 3.1 detail
Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HExploitable remotely over the network, with an administrator account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- High
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Directory Server 11 | Versions not published | |
| Red Hat Directory Server 12 | Versions not published | |
| Red Hat Directory Server 13 | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published |
References
- access.redhat.com access.redhat.com
- RHBZ#2485421 bugzilla.redhat.com
Timeline
- Published
- Last modified
Other CVEs of Red Hat Directory Server 11
The 42 CVEs of Red Hat Directory Server 11 →
CVE-2026-117548
389-ds-base: 389-ds-base: null pointer dereference via modifydn using an attribute's schema alias name causes denial of service
6.5
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CVE-2026-86345
389-ds-base: 389-ds-base: starttls plaintext-buffer retention allows on-path attacker to forge an ldap client's authentication result
9.0
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CVE-2026-86344
389-ds-base: 389-ds-base: unauthenticated worker-thread-pool exhaustion via completed-operation-then-incomplete-pdu connection requeue
7.5
High
CVE-2026-19843
389-ds-base: 389-ds-base: command injection via unescaped ldap dn in cockpit 389 console ldap editor
8.4
High