Yüksek CVSS 7.5

CVE-2026-15722: Directory Server: yığıt (stack) taşması

Yayın: 31 Temmuz 2026 13:16 · Güncelleme: 6 Kasım 2026 10:34

Açıklama (NVD)

A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. Stack protectors limit impact to 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: %0,83 (yüzdelik 58)
CWE: CWE-121
Yama: Yok / bilinmiyor

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
redhat-directory-server	11.0	11.0	—
redhat-directory-server	12.0	12.0	—
redhat-389-directory-server	—	—	—
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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