7.8

CVE-2021-47571

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

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

The free_rtllib() function frees the "dev" pointer so there is use
after free on the next line.  Re-arrange things to avoid that.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.2 < 4.4.294
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.292
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.257
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.219
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.163
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.83
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.6
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.03% 0.085
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.