5.5Mittel

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 Veröffentlicht: 2026-11-14 00:06 (vor 1 Stunde)

Beschreibung

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).

Schwachstellentyp (CWE): CWE-121

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Hersteller	Produkt	Versionen
Red Hat	Red Hat Enterprise Linux 10	—

Referenzen und Patches

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

CVSS-Score

5.5Mittel

Quelle: redhat · CVSS 3.1

Angriffsvektor: Lokal
Komplexität: Niedrig
Rechte erforderlich: Niedrig
Benutzerinteraktion: Keine
Geltungsbereich: Unverändert
Vertraulichkeit: Keine
Integrität: Keine
Verfügbarkeit: Hoch

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

CISA-Bewertung (SSVC)

Ausnutzung: poc
Automatisierbar: no
Technische Auswirkung: partial

Zeitverlauf

ID reserviert2026-11-13
Veröffentlicht2026-11-14 00:06
Bei IP-DB eingegangen2026-11-14 01:03
Zuletzt aktualisiert2026-11-14 00:19

Vergeben von (CNA): redhat

In der Quelle ansehen: CVE.org · NVD

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