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CVE-2021-28660

HIGHCVSS 8.8/10EPSS 1.32%

Last modified

CVE-2021-28660 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.32%

67.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.12, < 4.4.262
LinuxLinux Kernel>= 4.5, < 4.9.262
LinuxLinux Kernel>= 4.10, < 4.14.226
LinuxLinux Kernel>= 4.15, < 4.19.181
LinuxLinux Kernel>= 4.20, < 5.4.106
LinuxLinux Kernel>= 5.5, < 5.10.24
LinuxLinux Kernel>= 5.11, < 5.11.7
FedoraprojectFedora33
DebianDebian Linux9.0
NetappCloud BackupAll versions
NetappSolidfire Baseboard Management Controller FirmwareAll versions
NetappH700s FirmwareAll versions
NetappH700e FirmwareAll versions
NetappH410s FirmwareAll versions
NetappH300s FirmwareAll versions
NetappH500e FirmwareAll versions
NetappH300e FirmwareAll versions
NetappH500s FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-28660?
CVE-2021-28660 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28660?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-28660?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST