CVE-2021-4002

Updated: 2023-11-04 20:18:16.927203

Description:

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x LOW 3.6
CVSS Version 3.x MEDIUM 4.4

Status

OS name Project name Version Score Severity Status Errata Last updated
AlmaLinux 9.2 ESU kernel 5.14.0 4.4 MEDIUM Ignored 2023-11-08 04:07:42
AlmaLinux 9.2 FIPS kernel 5.14.0 4.4 MEDIUM Ignored 2023-11-21 04:12:19
CentOS 6 ELS kernel 2.6.32 4.4 MEDIUM Not Vulnerable 2022-03-30 18:48:10
CentOS 7 ELS kernel 3.10.0 4.4 MEDIUM Ignored 2023-09-19 09:30:02
CentOS 8.4 ELS kernel 4.18.0 4.4 MEDIUM Ignored 2022-12-02 16:07:03
CentOS 8.5 ELS kernel 4.18.0 4.4 MEDIUM Ignored 2022-12-02 16:07:03
CloudLinux 6 ELS kernel 2.6.32 4.4 MEDIUM Not Vulnerable 2022-03-30 18:48:09
Oracle Linux 6 ELS kernel 2.6.32 4.4 MEDIUM Ignored 2022-12-02 16:07:03
Ubuntu 16.04 ELS linux 4.4.0 4.4 MEDIUM Released CLSA-2022:1667414297 2022-11-02 17:07:51
Ubuntu 16.04 ELS linux-hwe 4.15.0 4.4 MEDIUM Already Fixed 2022-09-28 03:36:16
Total: 11