4.9

CVE-2021-20317

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4
Linux ≫ Linux Kernel Version5.4 Update-
Debian ≫ Debian Linux Version9.0
Debian ≫ Debian Linux Version10.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.37% 0.286
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.4 0.8 3.6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 4.9 3.9 6.9
AV:L/AC:L/Au:N/C:N/I:N/A:C
CWE-665 Improper Initialization

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Third Party Advisory
Mailing List
https://www.debian.org/security/2022/dsa-5096
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
https://bugzilla.redhat.com/show_bug.cgi?id=2005258
Third Party Advisory
Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=511885d7061eda3eb1faf3f57dcc936ff75863f1
Patch
Vendor Advisory