CVE-2021-47348

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/06888d571b513cbfc0b41949948def6cb81021b2	Patch
https://git.kernel.org/stable/c/3b2b93a485fb7a970bc8b5daef16f4cf579d172f	Patch
https://git.kernel.org/stable/c/44c7c901cb368a9f2493748f213b247b5872639f	Patch
https://git.kernel.org/stable/c/c5b518f4b98dbb2bc31b6a55e6aaa1e0e2948f2e	Patch
https://git.kernel.org/stable/c/06888d571b513cbfc0b41949948def6cb81021b2	Patch
https://git.kernel.org/stable/c/3b2b93a485fb7a970bc8b5daef16f4cf579d172f	Patch
https://git.kernel.org/stable/c/44c7c901cb368a9f2493748f213b247b5872639f	Patch
https://git.kernel.org/stable/c/c5b518f4b98dbb2bc31b6a55e6aaa1e0e2948f2e	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2024-05-21 15:15

Updated : 2025-04-02 14:30

NVD link : CVE-2021-47348

Mitre link : CVE-2021-47348

CVE.ORG link : CVE-2021-47348

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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