CVE-2024-6237 | 389-ds-base: unauthenticated user can trigger a dos by sending a specific extended search request

A flaw was found in the 389 Directory Server. This flaw allows an unauthenticated user to cause a systematic server crash while sending a specific extended search request, leading to a denial of service.

Published: 2024-07-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-6237 is rated Moderate Risk (53.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.06%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-6237

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-18 0.82% 1.06% +0.25%
2 2025-12-16 0.55% 0.82% +0.26%
3 2025-11-21 — 0.55% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-6237

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2024-6237

OS Trackers for CVE-2024-6237

vendor priority summary link
debian not yet assigned CVE-2024-6237 not yet assigned priority: Debian including 1 source packages (389-ds-base), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): open 2, resolved 2. https://security-tracker.debian.org/tracker/CVE-2024-6237
redhat medium — https://access.redhat.com/security/cve/CVE-2024-6237
suse medium CVE-2024-6237 severity moderate: SUSE including 23 source package names (389-ds, 389-ds-2.5.3~git85.613c0979-150700.1.8, …), 100 product×package rows across 24 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 9, … (24 product lines)): Known Not Affected 82, Fixed 18. https://www.suse.com/security/cve/CVE-2024-6237/
ubuntu medium CVE-2024-6237 medium priority: Ubuntu including 1 source packages (389-ds-base), 10 status rows across 10 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, upstream, xenial): needs-triage 4, not-affected 4, ignored 1, released 1. https://ubuntu.com/security/CVE-2024-6237

Affected software / configurations for CVE-2024-6237

Vendor Product Version Raw CPE
redhat directory_server 12.0 cpe:2.3:a:redhat:directory_server:12.0:*:*:*:*:*:*:*
redhat 389_directory_server — cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

References for CVE-2024-6237

cvelogic Threat Intelligence