CVE-2021-4002 vulnerability in Canonical and Other Products
Published on March 3, 2022
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
Weakness Type
What is an Insufficient Cleanup Vulnerability?
The software does not properly "clean up" and remove temporary or supporting resources after they have been used.
CVE-2021-4002 has been classified to as an Insufficient Cleanup vulnerability or weakness.
Products Associated with CVE-2021-4002
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Exploit Probability
EPSS
0.02%
Percentile
4.10%
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.