cve.bz

CVE-2021-4002

4.4 mediumEPSS 0.5%

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.

Severity

CVSS 3.1

4.4 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS
0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
CWEs
CWE-401, CWE-459
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON