7.8

CVE-2023-53205

KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler

In the Linux kernel, the following vulnerability has been resolved:

KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler

We do check for target CPU == -1, but this might change at the time we
are going to use it. Hold the physical target CPU in a local variable to
avoid out-of-bound accesses to the cpu arrays.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 5.13 < 5.15.121
LinuxLinux Kernel Version >= 5.16 < 6.1.39
LinuxLinux Kernel Version >= 6.2 < 6.4.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.048
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
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5
Patch
https://git.kernel.org/stable/c/86bfb18bad60fc468e5f112cbbd918462a8dd435
Patch
https://git.kernel.org/stable/c/dc7e0192c470a53d847c79a2796f9ac429477a26
Patch
https://git.kernel.org/stable/c/0bc380beb78aa352eadbc21d934dd9606fcee808
Patch