Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | - |
| Redhat | Enterprise Linux | 6.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2021-3714Third Party Advisory
- https://arxiv.org/abs/2111.08553Third Party Advisory
- https://arxiv.org/pdf/2111.08553.pdfTechnical DescriptionThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1931327Issue TrackingThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3714Third Party Advisory
- https://arxiv.org/abs/2111.08553Third Party Advisory
- https://arxiv.org/pdf/2111.08553.pdfTechnical DescriptionThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1931327Issue TrackingThird Party Advisory
FAQ
What is CVE-2021-3714?
CVE-2021-3714 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 us...
How severe is CVE-2021-3714?
CVE-2021-3714 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3714?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux.