CVE-2022-50156

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: HID: cp2112: prevent a buffer overflow in cp2112_xfer() Smatch warnings: drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'data->block[1]' too small (33 vs 255) drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'buf' too small (64 vs 255) The 'read_length' variable is provided by 'data->block[0]' which comes from user and it(read_length) can take a value between 0-255. Add an upper bound to 'read_length' variable to prevent a buffer overflow in memcpy().

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 3af7d60e9a6c17d6d41c4341f8020511887d372d, >= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 519ff31a6ddd87aa4905bd9bf3b92e8b88801614, >= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < ebda3d6b004bb6127a66a616524a2de152302ca7, >= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 8489a20ac481b08c0391608d81ed3796d373cfdf, >= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < e7028944e61014ae915e7fb74963d3835f2f761a, >= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 26e427ac85c2b8d0d108cc80b6de34d33e2780c4, >= 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 381583845d19cb4bd21c8193449385f3fefa9caf, >= 4.15, >= 4.15.1 < 4.19.256, >= 4.20 < 5.4.211, >= 5.5 < 5.10.137, >= 5.11 < 5.15.61, >= 5.16 < 5.18.18, >= 5.19 < 5.19.2, 4.15

Fixed versions

4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2

Technical data

CVSS vector

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

CWE

CWE-787