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
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Data is provided by the 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
Type Source Score Percentile
EPSS FIRST.org 0.04% 0.088
CVSS Metriken
Source 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.