4.6

CVE-2021-47476

In the Linux kernel, the following vulnerability has been resolved:

comedi: ni_usb6501: fix NULL-deref in command paths

The driver uses endpoint-sized USB transfer buffers but had no sanity
checks on the sizes. This can lead to zero-size-pointer dereferences or
overflowed transfer buffers in ni6501_port_command() and
ni6501_counter_command() if a (malicious) device has smaller max-packet
sizes than expected (or when doing descriptor fuzz testing).

Add the missing sanity checks to probe().

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
Diese Information steht angemeldeten Benutzern zur Verfügung.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.18 < 4.4.292
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.290
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.255
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.217
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.159
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.79
Linux ≫ Linux Kernel Version >= 5.11 < 5.14.18
Linux ≫ Linux Kernel Version >= 5.15 < 5.15.2
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.088
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 4.6 0.9 3.6
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.