CVE-2022-0646: Use After Free
First published: Fri Feb 18 2022(Updated: )
A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =5.17-rc1 | |
| Linux Linux kernel | =5.17-rc2 | |
| Linux Linux kernel | =5.17-rc3 | |
| Linux Linux kernel | =5.17-rc4 | |
| Linux Linux kernel | =5.17-rc5 | |
| Netapp Baseboard Management Controller H410c Firmware | ||
| Netapp Baseboard Management Controller H410c | ||
| Netapp Baseboard Management Controller H300s Firmware | ||
| Netapp Baseboard Management Controller H300s | ||
| Netapp Baseboard Management Controller H500s Firmware | ||
| Netapp Baseboard Management Controller H500s | ||
| Netapp Baseboard Management Controller H700s Firmware | ||
| Netapp Baseboard Management Controller H700s | ||
| Netapp Baseboard Management Controller H300e Firmware | ||
| Netapp Baseboard Management Controller H300e | ||
| Netapp Baseboard Management Controller H500e Firmware | ||
| Netapp Baseboard Management Controller H500e | ||
| Netapp Baseboard Management Controller H700e Firmware | ||
| Netapp Baseboard Management Controller H700e | ||
| Netapp Baseboard Management Controller H410s Firmware | ||
| Netapp Baseboard Management Controller H410s | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| Netapp H300e Firmware | ||
| Netapp H300e | ||
| Netapp H500e Firmware | ||
| Netapp H500e | ||
| Netapp H700e Firmware | ||
| Netapp H700e | ||
| Netapp H410s Firmware | ||
| Netapp H410s |
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Reference Links
Frequently Asked Questions
What is CVE-2022-0646?
CVE-2022-0646 is a vulnerability in the Linux kernel Management Component Transport Protocol (MCTP) subsystem that allows a local user to crash the system or escalate their privileges.
What is the severity of CVE-2022-0646?
The severity of CVE-2022-0646 is high with a CVSS score of 7.8.
Which systems are affected by CVE-2022-0646?
Linux kernel versions 5.17-rc1, 5.17-rc2, 5.17-rc3, 5.17-rc4, and 5.17-rc5, as well as Netapp Baseboard Management Controller firmware versions H410c, H300s, H500s, H700s, H300e, H500e, H700e, and H410s are affected by CVE-2022-0646.
How can CVE-2022-0646 be exploited?
CVE-2022-0646 can be exploited by a local user who triggers cancel_work_sync after the unregister_netdev during removing a device.
Where can I find more information about CVE-2022-0646?
You can find more information about CVE-2022-0646 at the following references: [Linux Kernel Mailing List](https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.au) and [Netapp Security Advisory](https://security.netapp.com/advisory/ntap-20220318-0006/).
- collector/nvd-index
- agent/references
- agent/type
- agent/last-modified-date
- agent/author
- collector/nvd-api
- agent/software-canonical-lookup-request
- agent/severity
- agent/weakness
- agent/remedy
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.17-rc1
- version/linux linux kernel/5.17-rc2
- version/linux linux kernel/5.17-rc3
- version/linux linux kernel/5.17-rc4
- version/linux linux kernel/5.17-rc5
- vendor/netapp
- canonical/netapp baseboard management controller h410c firmware
- canonical/netapp baseboard management controller h410c
- canonical/netapp baseboard management controller h300s firmware
- canonical/netapp baseboard management controller h300s
- canonical/netapp baseboard management controller h500s firmware
- canonical/netapp baseboard management controller h500s
- canonical/netapp baseboard management controller h700s firmware
- canonical/netapp baseboard management controller h700s
- canonical/netapp baseboard management controller h300e firmware
- canonical/netapp baseboard management controller h300e
- canonical/netapp baseboard management controller h500e firmware
- canonical/netapp baseboard management controller h500e
- canonical/netapp baseboard management controller h700e firmware
- canonical/netapp baseboard management controller h700e
- canonical/netapp baseboard management controller h410s firmware
- canonical/netapp baseboard management controller h410s
- canonical/netapp h410c firmware
- canonical/netapp h410c
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s