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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 09 Dec 2024 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-193
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics cvssV3_1

{'score': 6.0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H'}

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Mon, 04 Nov 2024 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:03:01.818Z

Reserved: 2024-02-27T18:42:55.970Z

Link: CVE-2021-47046

cve-icon Vulnrichment

Updated: 2024-08-04T05:24:39.795Z

cve-icon NVD

Status : Analyzed

Published: 2024-02-28T09:15:40.277

Modified: 2024-12-09T19:02:52.227

Link: CVE-2021-47046

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-02-28T00:00:00Z

Links: CVE-2021-47046 - Bugzilla

cve-icon OpenCVE Enrichment

No data.