CVE-2021-3501

kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run

Published May 5, 2021 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-26821 A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
Ubuntu USN Ubuntu USN USN-4977-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4983-1 Linux kernel (OEM) vulnerabilities
History

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