huawei openeuler CVE-2021-33656 vulnerability in Huawei and Other Products
Published on July 18, 2022

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When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

NVD

Weakness Type

What is a Memory Corruption Vulnerability?

The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.

CVE-2021-33656 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2021-33656

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Exploit Probability

EPSS
0.03%
Percentile
8.32%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.