CVE-2021-28660 Memory corruption in n/a
A buffer overflow in the rtl8188eu staging driver allows attackers to write beyond array bounds, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-28660?
CVE-2021-28660 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 17 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
rtw_wx_set_scan in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the Linux kernel through 5.11.6 allows writing beyond the end of the ->ssid[] array. NOTE: from the perspective of kernel.org releases, CVE IDs are not normally used for drivers/staging/* (unfinished work); however, system integrators may have situations in which a drivers/staging issue is relevant to their own customer base.
Weakness: CWE-787
Which versions are affected by CVE-2021-28660?
It affects 12 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Netapp Cloud Backup, Netapp H300e Firmware, Netapp H300s Firmware and 6 more.
How do I fix CVE-2021-28660?
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-2021-28660 being exploited?
There is no known exploitation of CVE-2021-28660 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-6536, DEBIAN-CVE-2021-28660, GHSA-mv4x-232j-667r, UBUNTU-CVE-2021-28660.