4.7

CVE-2023-1859

A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel. This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 6.2
Linux ≫ Linux Kernel Version 6.3 Update rc1
Linux ≫ Linux Kernel Version 6.3 Update rc2
Linux ≫ Linux Kernel Version 6.3 Update rc3
Linux ≫ Linux Kernel Version 6.3 Update rc4
Linux ≫ Linux Kernel Version 6.3 Update rc5
Linux ≫ Linux Kernel Version 6.3 Update rc6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.073
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADP 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz%40163.com/