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Vulnerability record · public intelligence
CVE-2018-20511
UNKNOWN

CVE-2018-20511

Published Dec 27, 2018 · Updated Nov 3, 2026

Severity · CVSSUNKNOWN · Not scored
Known exploitationNot listed
EPSS / likelihood0.47%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

An issue was discovered in the Linux kernel before 4.18.11. The ipddp_ioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

An issue was discovered in the Linux kernel before 4.18.11. The ipddp_ioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. Patch commit ↗
  2. lkml.org ↗
  3. Patch commit ↗
  4. cdn.kernel.org ↗
  5. 106347 ↗
  6. [debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update ↗
  7. [debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update ↗
  8. USN-4094-1 ↗
  9. USN-4118-1 ↗

Record history

Published Dec 27, 2018 · Last refreshed Nov 3, 2026

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