CVE-2018-20511

Name: CVE-2018-20511
Creator: NVD / NIST
Published: 2018-12-27T14:29:00.457+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.45%

Last modified Jun 17, 2026

CVE-2018-20511 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.45%

35.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 4.18.11
Debian	Debian Linux	8.0

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Vendor Advisory
http://www.securityfocus.com/bid/106347Third Party Advisory, VDB Entry
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11Release Notes, Vendor Advisory
https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://lkml.org/lkml/2018/9/27/480Patch, Third Party Advisory
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Vendor Advisory
http://www.securityfocus.com/bid/106347Third Party Advisory, VDB Entry
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11Release Notes, Vendor Advisory
https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://lkml.org/lkml/2018/9/27/480Patch, Third Party Advisory
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/

Timeline

Published: Dec 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20511?

How severe is CVE-2018-20511?

Severity scoring for CVE-2018-20511 is pending analysis. The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20511?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20511?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST