4.7

CVE-2023-3439

A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.15 <= 5.17
Linux ≫ Linux Kernel Version 5.18 Update rc1
Linux ≫ Linux Kernel Version 5.18 Update rc2
Linux ≫ Linux Kernel Version 5.18 Update rc3
Linux ≫ Linux Kernel Version 5.18 Update rc4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.35% 0.269
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

http://www.openwall.com/lists/oss-security/2023/07/02/1
Patch
Third Party Advisory
Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=2217915
Patch
Third Party Advisory
Issue Tracking
https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269
Patch