CVE-2018-1116

Name: CVE-2018-1116
Creator: NVD / NIST
Published: 2018-07-10T19:29:00.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2018-1116 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. A flaw was found in polkit before version 0.116. The implementation of the polkit_backend_interactive_authority_check_authorization function in polkitd allows to test for authentication and trigger authentication of unrelated processes owned by other users. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

A flaw was found in polkit before version 0.116. The implementation of the polkit_backend_interactive_authority_check_authorization function in polkitd allows to test for authentication and trigger authentication of unrelated processes owned by other users. This may result in a local DoS and information disclosure.

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

1.20%

64.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	12.04
Polkit Project	Polkit	< 0.115

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1116Issue Tracking, Patch
https://cgit.freedesktop.org/polkit/commit/?id=bc7ffad5364Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00042.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201908-14Third Party Advisory
https://usn.ubuntu.com/3717-2/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1116Issue Tracking, Patch
https://cgit.freedesktop.org/polkit/commit/?id=bc7ffad5364Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00042.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201908-14Third Party Advisory
https://usn.ubuntu.com/3717-2/Third Party Advisory

Timeline

Published: Jul 10, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1116?

How severe is CVE-2018-1116?

CVE-2018-1116 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1116?

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-2018-1116?

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

Scan your code now

Source: NVD / NIST