8.2

CVE-2019-19770

Exploit
In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 4.19.83
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.45% 0.822
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.2 3.9 4.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
nvd@nist.gov 6.4 10 4.9
AV:N/AC:L/Au:N/C:P/I:N/A:P
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://security.netapp.com/advisory/ntap-20200103-0001/
Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=205713
Vendor Advisory
Exploit
Issue Tracking
https://lore.kernel.org/linux-block/20200402000002.7442-1-mcgrof%40kernel.org/