DEBIAN-CVE-2026-9064

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Source

https://security-tracker.debian.org/tracker/CVE-2026-9064

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9064.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-9064

Upstream

CVE-2026-9064

Published

2026-05-20T10:16:28Z

Modified

2026-09-14T17:03:37Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls within the default maximum BER message size (2 MB), causing excessive CPU consumption and heap allocation on the server. Under concurrent exploitation, this leads to significant latency degradation, worker thread starvation, or out-of-memory termination, resulting in a denial of service.

References

https://security-tracker.debian.org/tracker/CVE-2026-9064

Affected packages

Debian:12 / 389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/debian/389-ds-base?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.1+dfsg1-1

2.3.1+dfsg1-1+deb12u1

2.3.4+dfsg1-1

2.3.4+dfsg1-1.1

2.4.4+dfsg1-1

2.4.4+dfsg1-3

2.4.5+dfsg1-1

3.*

3.0.2+dfsg1-1

3.1.1+dfsg1-1

3.1.1+dfsg1-2

3.1.1+dfsg1-3

3.1.2+dfsg1-1

3.1.2+vendor1-1

3.1.2+vendor1-2

3.3.0-1

3.3.0-2

3.3.1-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9064.json"

Debian:13 / 389-ds-base