GSD-2021-1002785 ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module
A use-after-free vulnerability in the Linux kernel IPMI driver allows local attackers with high privileges to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1002785?
GSD-2021-1002785 is an use after free vulnerability in Kernel, published on 30 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.223 by commit 925229d552724e1bba1abf01d3a0b1318539b012, it was introduced in version v4.15 by commit b2cfd8ab4add53c2070367bfee2f5b738f51698d. For more details please see the references link.
Which versions are affected by GSD-2021-1002785?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002785?
No fix has been published for GSD-2021-1002785 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1002785 being exploited?
There is no known exploitation of GSD-2021-1002785 in the wild and no public exploit code.