CVE-2018-20511

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9d patch vendor advisory
https://lkml.org/lkml/2018/9/27/480 third party advisory patch
https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9d third party advisory patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11 release notes vendor advisory
http://www.securityfocus.com/bid/106347 third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html mailing list
https://usn.ubuntu.com/4094-1/ vendor advisory
https://usn.ubuntu.com/4118-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-20511?
CVE-2018-20511 has been scored as a medium severity vulnerability.
How to fix CVE-2018-20511?
To fix CVE-2018-20511, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20511 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-20511 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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