CVE-2024-47698 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drivers: media: dvb-frontends/rtl2832: fix an out-of-bounds write error

Ensure index in rtl2832_pid_filter does not exceed 31 to prevent out-of-bounds access.

dev->filters is a 32-bit value so set_bit and clear_bit functions should only operate on indices from 0 to 31. If index is 32 it will attempt to access a non-existent 33rd bit leading to out-of-bounds access. Change the boundary check from index > 32 to index >= 32 to resolve this issue.

[hverkuil: added fixes tag rtl2830_pid_filter -> rtl2832_pid_filter in logmsg]

CVSS Vector

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

Reference

https://git.kernel.org/stable/c/6ae3b9aee42616ee93c4585174f40c767828006d https://git.kernel.org/stable/c/a879b6cdd48134a3d58949ea4f075c75fa2d7d71 https://git.kernel.org/stable/c/15bea004e939d938a6771dfcf2a26cc899ffd20a https://git.kernel.org/stable/c/527ab3eb3b0b4a6ee00e183c1de6a730239e2835 https://git.kernel.org/stable/c/66dbe0df6eccc7ee53a2c35016ce81e13b3ff447 https://git.kernel.org/stable/c/bedd42e07988dbdd124b23e758ffef7a681b9c60 https://git.kernel.org/stable/c/8ae06f360cfaca2b88b98ca89144548b3186aab1

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8