Yüksek CVSS 7.5

CVE-2026-9064: Directory Server: güvenlik açığı

Yayın: 20 Mayıs 2026 13:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

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.

Özet bilgiler

Ürün: Redhat Directory Server
CVSS v3.1: 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: %0,82 (yüzdelik 57)
CWE: CWE-770
Yama: Geçici çözüm

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
redhat-directory-server	11.0	11.0	—
redhat-directory-server	12.0	12.0	—
redhat-directory-server	13.0	13.0	—
redhat-389-directory-server	—	—	—
redhat-enterprise-linux	6.0	6.0	—
redhat-enterprise-linux	7.0	7.0	—
redhat-enterprise-linux	8.0	8.0	—
redhat-enterprise-linux	9.0	9.0	—
redhat-enterprise-linux	10.0	10.0	—

Kaynaklar

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