CVE-2021-47109

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47109

Import Source

https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47109.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47109

Related

Published

2024-03-15T21:15:06Z

Modified

2024-09-11T02:00:04Z

Summary

[none]

Details

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

neighbour: allow NUD_NOARP entries to be forced GCed

IFFPOINTOPOINT interfaces use NUDNOARP entries for IPv6. It's possible to fill up the neighbour table with enough entries that it will overflow for valid connections after that.

This behaviour is more prevalent after commit 58956317c8de ("neighbor: Improve garbage collection") is applied, as it prevents removal from entries that are not NUD_FAILED, unless they are more than 5s old.

References

Affected packages

Debian:11 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.46-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.46-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.46-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}