CVE-2020-12464 Use after free in n/a
A use-after-free in the Linux kernel USB core allows attackers to execute arbitrary code or escalate privileges via crafted USB transfers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12464?
CVE-2020-12464 is a medium-severity use after free vulnerability in Linux kernel, published on 29 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925.
Weakness: CWE-416
Which versions are affected by CVE-2020-12464?
It affects 10 products.
Products include Linux kernel, Netapp Active Iq Unified Manager, Netapp Aff A700s, Netapp Cloud Backup, Netapp Hci Baseboard Management Controller, Netapp Hci Compute Node and 4 more.
How do I fix CVE-2020-12464?
Apply the vendor's patch.
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 CVE-2020-12464 being exploited?
There is no known exploitation of CVE-2020-12464 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as A-156071259, ASB-A-156071259, DEBIAN-CVE-2020-12464, GHSA-jx8c-mxmr-fc68, UBUNTU-CVE-2020-12464.