7.2

CVE-2021-28972

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.

Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.263
Linux ≫ Linux Kernel Version > 4.5 <= 4.9.263
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.227
Linux ≫ Linux Kernel Version > 4.15 <= 4.19.183
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.108
Linux ≫ Linux Kernel Version >= 5.5.0 < 5.10.26
Linux ≫ Linux Kernel Version >= 5.11 < 5.11.9
Fedoraproject ≫ Fedora Version32
Fedoraproject ≫ Fedora Version33
Fedoraproject ≫ Fedora Version34
Netapp ≫ Cloud Backup Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.06% 0.172
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.7 0.8 5.9
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.