Netapp Solidfire Baseboard Management Controller
CVE-2021-28691
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.
What this means for your business
- It affects Netapp Solidfire Baseboard Management Controller. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.4% chance of attack attempts being seen in the next 30 days, ranking above 29% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Netapp Solidfire Baseboard Management Controller, and which version. The affected versions are listed further down this page.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 7.8 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-416
- Assigned by
- security@xen.org
Dates
- Published
- 2021-06-29
- Last modified
- 2026-08-26
- Sources
- NVD
Affected products
- Netapp Solidfire Baseboard Management Controllerall versions
- Linux Linux Kernel5.5.0 - 5.10.43
- Netapp Cloud Backupall versions
- Netapp H410c Firmwareall versions
- Netapp H410call versions
- Netapp H300s Firmwareall versions
- Netapp H300sall versions
- Netapp H500s Firmwareall versions
- Netapp H500sall versions
- Netapp H700s Firmwareall versions
- Netapp H700sall versions
- Netapp H300e Firmwareall versions
As listed in the NVD configuration data. Not a statement about your estate.