CVE-2021-47367 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

virtio-net: fix pages leaking when building skb in big mode

We try to use build_skb() if we had sufficient tailroom. But we forget
to release the unused pages chained via private in big mode which will
leak pages. Fixing this by release the pages after building the skb in
big mode.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00008.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/afd92d82c9d715fb97565408755acad81573591a
https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67ba
https://lore.kernel.org/linux-cve-announce/2024052139-CVE-2021-47367-f587@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47367
https://www.cve.org/CVERecord?id=CVE-2021-47367

History

Wed, 02 Apr 2025 15:15:00 +0000

Type	Values Removed	Values Added
CPEs		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.15:rc1:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-21T15:03:33.861Z

Updated: 2025-05-04T07:09:29.088Z

Reserved: 2024-05-21T14:58:30.810Z

Link: CVE-2021-47367

Vulnrichment

Updated: 2024-08-04T05:32:08.538Z

NVD

Status : Analyzed

Published: 2024-05-21T15:15:22.700

Modified: 2025-04-02T14:53:39.063

Link: CVE-2021-47367

Redhat

Severity : Low

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2021-47367 - Bugzilla

OpenCVE Enrichment

No data.

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