CVE-2021-37159medium
Description
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.
References
https://www.spinics.net/lists/linux-usb/msg202228.html
https://security.netapp.com/advisory/ntap-20210819-0003/
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
Details
Source: MITRE
Published: 2021-07-21
Updated: 2022-07-25
Type: CWE-415
Risk Information
CVSS v2
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
CVSS v3
Base Score: 6.4
Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 0.5
Severity: MEDIUM