VULNERABILITY INTELLIGENCE

CVE-2021-47348

CVSS score9.1 CRITICAL
EPSS probability0.99%
CISA KEVNot currently listed
Published2024-05-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid HDCP over-read and corruption Instead of reading the desired 5 bytes of the actual target field, the code was reading 8. This could result in a corrupted value if the trailing 3 bytes were non-zero, so instead use an appropriately sized and zero-initialized bounce buffer, and read only 5 bytes before casting to u64.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-119

Primary references