CVE-2021-28660

Related Vulnerabilities: CVE-2021-28660  

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.

Description

The MITRE CVE dictionary describes this issue as:

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.

Additional Information

  • Bugzilla 1940590: CVE-2021-28660 kernel: buffer overflow in rtw_wx_set_scan function in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • FAQ: Frequently asked questions about CVE-2021-28660