Information Exposure Affecting kernel-debug-devel package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELDEBUGDEVEL-2439027
- 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 RHEL:7 kernel-debug-devel.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel package as distributed by RHEL.
See How to fix? for RHEL:7 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.