6.4

CVE-2021-37159

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 5.13.4
Debian ≫ Debian Linux Version9.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.39% 0.311
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.4 0.5 5.9
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 4.4 3.4 6.4
AV:L/AC:M/Au:N/C:P/I:P/A:P
CWE-415 Double Free

The product calls free() twice on the same memory address.

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://www.oracle.com/security-alerts/cpujul2022.html
Patch
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
Third Party Advisory
Mailing List
https://bugzilla.suse.com/show_bug.cgi?id=1188601
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6ecfb39ba9d7316057cea823b196b734f6b18ca
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dcb713d53e2eadf42b878c12a471e74dc6ed3145
https://security.netapp.com/advisory/ntap-20210819-0003/
Third Party Advisory
https://www.spinics.net/lists/linux-usb/msg202228.html
Patch
Third Party Advisory
Mailing List