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CVE-2026-128885Dbus: stack out-of-bounds write in dbus _dbus_poll() select() fallback when file descriptor exceeds fd_setsize

Red Hat Red Hat Enterprise Linux 10 Yayım: 2026-11-14 00:06 (1 saat önce)

Açıklama

A flaw was found in D-Bus. In configurations where the daemon falls back to using the Unix select() mechanism for event monitoring, it does not verify whether file descriptor numbers exceed allocated limits. A local attacker can exploit this flaw by opening a large number of concurrent connections to trigger an out-of-bounds write on the stack. This can cause the daemon to crash, resulting in a Denial of Service (DoS).

Zayıflık türü (CWE): CWE-121

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Üretici	Ürün	Sürümler
Red Hat	Red Hat Enterprise Linux 10	—

Kaynaklar ve yamalar

https://access.redhat.com/security/cve/CVE-2026-128885 vdb-entry
RHBZ#2462795 issue-tracking

CVSS puanı

5.5Orta

Kaynak: redhat · CVSS 3.1

Saldırı yolu: Yerel
Karmaşıklık: Düşük
Gereken yetki: Düşük
Kullanıcı etkileşimi: Gerekmez
Kapsam: Değişmez
Gizlilik: Yok
Bütünlük: Yok
Erişilebilirlik: Yüksek

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA değerlendirmesi (SSVC)

İstismar: poc
Otomatikleştirilebilir: no
Teknik etki: partial

Zaman çizelgesi

Numara ayrıldı2026-11-13
Yayımlandı2026-11-14 00:06
IP-DB'ye ulaştı2026-11-14 01:03
Son güncelleme2026-11-14 00:19

Numarayı veren (CNA): redhat

Kaynakta görüntüle: CVE.org · NVD

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