5.4

CVE-2019-20934

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.19 < 4.19.64
Linux ≫ Linux Kernel Version >= 5.2 <= 5.2.17
Linux ≫ Linux Kernel Version5.3 Updaterc1
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.11% 0.304
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.3 1 4.2
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
nvd@nist.gov 5.4 3.4 7.8
AV:L/AC:M/Au:N/C:P/I:N/A:C
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.