CVE-2021-47046 Vulnerability Details

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CVE-2021-47046 Metadata Quick Info

CVE Published: 28/02/2024 | CVE Updated: 04/11/2024 | CVE Year: 2021
Source: Linux | Vendor: Linux | Product: Linux
Status : PUBLISHED

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CVE-2021-47046 Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix off by one in hdmi_14_process_transaction() The hdcp_i2c_offsets[] array did not have an entry for HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE so it led to an off by one read overflow. I added an entry and copied the 0x0 value for the offset from similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c. I also declared several of these arrays as having HDCP_MESSAGE_ID_MAX entries. This doesn\'t change the code, but it\'s just a belt and suspenders approach to try future proof the code.

Metrics

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

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Weakness Enumeration (CWE)

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Source: Linux

Common Attack Pattern Enumeration and Classification (CAPEC)

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Source: NVD (National Vulnerability Database).