5.5

CVE-2021-4150

Exploit
A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges could cause a denial of service on the system. The issue results from the lack of code cleanup when device_add call fails when adding a partition to the disk.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.15
Linux ≫ Linux Kernel Version 5.15
Linux ≫ Linux Kernel Version 5.15 Update rc1
Linux ≫ Linux Kernel Version 5.15 Update rc2
Linux ≫ Linux Kernel Version 5.15 Update rc3
Linux ≫ Linux Kernel Version 5.15 Update rc4
Linux ≫ Linux Kernel Version 5.15 Update rc5
Linux ≫ Linux Kernel Version 5.15 Update rc6
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.34% 0.252
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NIST 4.9 3.9 6.9
AV:L/AC:L/Au:N/C:N/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://bugzilla.redhat.com/show_bug.cgi?id=2025938
Third Party Advisory
Issue Tracking
https://lkml.org/lkml/2021/10/18/485
Third Party Advisory
Exploit
https://lkml.org/lkml/2021/9/6/781
Third Party Advisory
Exploit