7.8

CVE-2020-25220

The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.9.0 < 4.9.233
Linux ≫ Linux Kernel Version >= 4.14 < 4.14.194
Linux ≫ Linux Kernel Version >= 4.19 < 4.19.140
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.45% 0.356
CVSS Metriken
Quelle 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
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
Third Party Advisory
Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=1868453
Patch
Third Party Advisory
Issue Tracking
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194
Vendor Advisory
Release Notes
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140
Vendor Advisory
Release Notes
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233
Vendor Advisory
Release Notes
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e
Patch
Vendor Advisory
Issue Tracking
https://security.netapp.com/advisory/ntap-20201001-0004/
Third Party Advisory
https://www.spinics.net/lists/stable/msg405099.html
Patch
Third Party Advisory
Mailing List