Information Exposure Affecting kernel-cross-headers package, versions *
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELCROSSHEADERS-2438565
- published 1 Apr 2022
- disclosed 16 Nov 2021
Introduced: 16 Nov 2021
CVE-2021-3714 Open this link in a new tabHow to fix?
There is no fixed version for Centos:8 kernel-cross-headers.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged.