CVE-2021-47404

Summary

In the Linux kernel, the following vulnerability has been resolved:

HID: betop: fix slab-out-of-bounds Write in betop_probe

Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver. The problem is the driver assumes the device must have an input report but some malicious devices violate this assumption.

So this patch checks hid_device's input is non empty before it's been used.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < a4faa7153b87fbcfe4be15f4278676f79ca6e019affected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < 6fc4476dda58f6c00097c7ddec3b772513f57525affected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < 1c83c38dec83d57bc18d0c01d82c413d3b34ccb9affected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < bb8b72374db69afa25a5b65cf1c092860c6fe914affected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < fe9bb925e7096509711660d39c0493a1546e9550affected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < dedfc35a2de2bae9fa3da8210a05bfd515f83feeaffected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < 708107b80aa616976d1c5fa60ac0c1390749db5eaffected
LinuxLinux52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 < 1e4ce418b1cb1a810256b5fb3fd33d22d1325993affected
LinuxLinux4.0affected
LinuxLinux0 < 4.0unaffected
LinuxLinux4.4.286 <= 4.4.*unaffected
LinuxLinux4.9.285 <= 4.9.*unaffected
LinuxLinux4.14.249 <= 4.14.*unaffected
LinuxLinux4.19.209 <= 4.19.*unaffected
LinuxLinux5.4.151 <= 5.4.*unaffected
LinuxLinux5.10.71 <= 5.10.*unaffected
LinuxLinux5.14.10 <= 5.14.*unaffected
LinuxLinux5.15 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References