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No exploitation reportedFix available

CVE-2013-20001

No exploitation reported by the sources we read.

  • Published2021-02-12

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in OpenZFS through 2.0.3. When an NFS share is exported to IPv6 addresses via the sharenfs feature, there is a silent failure to parse the IPv6 address data, and access is allowed to everyone. IPv6 restrictions from the configuration are not applied.

Timeline

dates in UTC
  1. 2021-02-1220:15CVE publishedNVD

Versions per branch

NVD
Openzfs
BranchAffectedFixed in
2.0≤ 2.0.3no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • zfs-linuxUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • zfs-linuxUbuntu:22.04:LTSall versions · fixed in 2.1.5-1ubuntu6~22.04.2
  • zfs-linuxUbuntu:20.04:LTSall versions · fixed in 0.8.3-1ubuntu12.16
  • zfs-linuxUbuntu:16.04:LTSall versions · no fixed version listed
  • zfs-linuxDebian:14all versions · fixed in 2.2.2-1
  • zfs-linuxDebian:13all versions · fixed in 2.2.2-1
  • zfs-linuxDebian:12all versions · fixed in 2.1.11-1+deb12u1
  • zfs-linuxDebian:11all versions · fixed in 2.0.3-9+deb11u2

1 more package range on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

  • EUVD-2013-1988same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • GHSA-95qf-v6r5-2v3vsame flawGitHub Advisory Database · CC-BY-4.0
  • DLA-3766-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DLA-4114-1advisory covering several CVEsDebian · LicenseRef-unstated
  • USN-6511-1advisory covering several CVEsUbuntu

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2021-02-12
Last Modified
2026-06-16
NVD status
Modified
GitHub Advisory
GHSA-95qf-v6r5-2v3v

Frequently asked questions

What is CVE-2013-20001?

An issue was discovered in OpenZFS through 2.0.3. When an NFS share is exported to IPv6 addresses via the sharenfs feature, there is a silent failure to parse the IPv6 address data, and access is allowed to everyone. IPv6 restrictions from the configuration are not applied.

Is CVE-2013-20001 actively exploited?

Active exploitation of CVE-2013-20001 has not been confirmed. Its EPSS score was 2.1% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2013-20001?

CVE-2013-20001 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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