CVE-2026-15722
CVSS 7.5 · YüksekNVD: Modified
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.
Yayın: 31.07.2026 · Son değişiklik: 05.11.2026 · Zayıflık: CWE-121
CVSS 3.1 metrikleri
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Saldırı vektörü | Ağ (uzaktan) |
| Karmaşıklık | Düşük |
| Gereken yetki | Yok |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişmez |
| Gizlilik | Yok |
| Bütünlük | Yok |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 7.5. CVSS hesaplayıcıda incele
Referanslar
- https://access.redhat.com/errata/RHSA-2026:55421
- https://access.redhat.com/errata/RHSA-2026:55422
- https://access.redhat.com/errata/RHSA-2026:55423
- https://access.redhat.com/errata/RHSA-2026:55424
- https://access.redhat.com/errata/RHSA-2026:55425
- https://access.redhat.com/errata/RHSA-2026:55426
- https://access.redhat.com/errata/RHSA-2026:55530
- https://access.redhat.com/errata/RHSA-2026:55532
- https://access.redhat.com/errata/RHSA-2026:55756
- https://access.redhat.com/errata/RHSA-2026:55757
- https://access.redhat.com/errata/RHSA-2026:55758
- https://access.redhat.com/errata/RHSA-2026:55794
- https://access.redhat.com/errata/RHSA-2026:56047
- https://access.redhat.com/errata/RHSA-2026:56048
- https://access.redhat.com/errata/RHSA-2026:56050
- https://access.redhat.com/errata/RHSA-2026:79217
- https://access.redhat.com/security/cve/CVE-2026-15722
- https://bugzilla.redhat.com/show_bug.cgi?id=2499961