CVE-2021-3501

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory kernel.org
Affected: n/a kernel
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1950136 issue tracking third party advisory patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c4f2ee3f68c9a4bf1653d15f1a9a435ae33f7a mailing list patch vendor advisory
https://security.netapp.com/advisory/ntap-20210618-0008/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3501?
CVE-2021-3501 has been scored as a high severity vulnerability.
How to fix CVE-2021-3501?
To fix CVE-2021-3501, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3501 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3501 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3501?
CVE-2021-3501 affects n/a kernel.
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