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).
Metrics
Affected Vendors & Products
References
History
Sat, 14 Nov 2026 02:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Red Hat
Red Hat enterprise Linux |
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| Vendors & Products |
Red Hat
Red Hat enterprise Linux |
Fri, 13 Nov 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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). | |
| Title | Dbus: stack out-of-bounds write in dbus _dbus_poll() select() fallback when file descriptor exceeds fd_setsize | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-121 | |
| CPEs | cpe:/a:redhat:enterprise_linux:10 | |
| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-11-13T21:06:46.450Z
Updated: 2026-11-13T21:19:18.067Z
Reserved: 2026-11-13T11:51:21.521Z
Link: CVE-2026-128885
No data.
Status : Awaiting Analysis
Published: 2026-11-13T21:17:45.827
Modified: 2026-11-13T22:17:23.543
Link: CVE-2026-128885
No data.
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