CVE-2021-43975 Memory corruption in n/a
An attacker with physical access can trigger an out-of-bounds write in the Aquantia Atlantic network driver, potentially leading to code execution or privilege escalation.
- 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-2021-43975?
CVE-2021-43975 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 17 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value.
Weakness: CWE-787
Which versions are affected by CVE-2021-43975?
It affects 11 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Netapp Cloud Backup, Netapp H300e Firmware, Netapp H410c Firmware and 5 more.
How do I fix CVE-2021-43975?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-43975 being exploited?
There is no known exploitation of CVE-2021-43975 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as A-207093880, AZL-6605, DEBIAN-CVE-2021-43975, GHSA-8mh6-h8xv-rm77, OESA-2021-1442, PUB-A-207093880 and 1 more.