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CVE-2018-16884

No known exploitation. EPSS puts it in the 74th percentile. Fixed in 3.16.65.

CVSS 3.18.0HighEPSS percentile74th1.5% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix3.16.65Upgrade to this build
Check it yourself

OpenVAS · 53 checks

e.g. OID 1.3.6.1.4.1.25623.1.0.143106

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Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Linux KernelAffected: ≥ 3.7, < 3.16.65Upgrade to: 3.16.65Stated by: NVD
  • Canonical Ltd. UbuntuAffected: 16.04 LTSUpgrade to: not statedStated by: BDU
  • Red Hat Inc. Red Hat Enterprise LinuxAffected: 7.0Upgrade to: not statedStated by: BDU
  • Red Hat Inc. Red Hat Enterprise MRGAffected: 2.0Upgrade to: not statedStated by: BDU
  • ООО «РусБИТех-Астра» Astra Linux Common EditionAffected: 2.12 «Орёл»Upgrade to: not statedStated by: BDU

Versions as the sources state them. 2 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS74th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

1.5% chance of exploitation activity in the next 30 days, which ranks it in the 74th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

6 events over 2746 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. Patch availablerecord updated
  3. Publishedweakness classified, att&ck mapped

Affected products

And 3 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Scored 8.0 by NVD.

How it is reached

  • Attack Vector AdjacentRequires access to the local network (e.g. same Wi-Fi, Bluetooth)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 61 more references. See all after sign-in

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