CVE-2021-47348
Critical
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.
SeverityCritical
CVSS9.1
Exploit probability—
Product
Linux Kernel
PublishedMay 21, 2024
First seenMay 21, 2024
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- linux linux_kernel5.10.51, 5.12.18, 5.13.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.10.51, 5.11 ≤ v < 5.12.18, 5.13 ≤ v < 5.13.3 | 5.10.51, 5.12.18, 5.13.3 |
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