CVE-2021-3714
mediumpriority · track · 25EPSS 0.016 · 76 %ileDEEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-1207Linux Kernel: Mehrere Schwachstellen ermöglichen Offenlegung von InformationenDeutsch2022-08-29csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Informationen offenzulegen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2021-3714cnnvd
- https://arxiv.org/abs/2111.08553cnnvd
- https://arxiv.org/pdf/2111.08553.pdfcnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=1931327cnnvd
- https://cxsecurity.com/cveshow/CVE-2021-3714/cnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-information-disclosure-via-Memory-Deduplication-39104cnnvd
- https://access.redhat.com/security/cve/CVE-2021-3714enisa_euvd
- https://arxiv.org/abs/2111.08553enisa_euvd
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