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CVE-2019-6133

19
FAUCET Score

CVE-2019-6133 describes a medium-severity vulnerability in PolicyKit (polkit) version 0.115, affecting various Linux distributions including Canonical, Debian, and Red Hat. The flaw allows for a bypass of the "start time" protection mechanism due to a non-atomic fork() operation and a lack of UID checking, leading to improper caching of authorization decisions. This local vulnerability (AV:L) has high impact on confidentiality, integrity, and availability (C:H/I:H/A:H) but requires high attack complexity (AC:H) and user interaction (UI:R). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, with its EPSS score indicating a very low likelihood of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
0.115CPE matchmatch criteria
cpe:2.3:a:polkit_project:polkit:0.115:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
7.6CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.7MEDIUM

CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 91st percentile among its peer group of 296 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: polkit-0:0.96-11.el6_10.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Advanced Update SupportFixed in: polkit-0:0.96-7.el6_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: polkit-0:0.112-18.el7_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Extended Update SupportFixed in: polkit-0:0.112-12.el7_4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: polkit-0:0.112-14.el7_5.1
View patch
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: rhvm-appliance

Vendor Advisories (1)

redhatCVE-2019-6133Important

polkit: Temporary auth hijacking via PID reuse and non-atomic fork

Jan 9, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-08/msg00049.html
access.redhat.com / errata/RHSA-2019:0230
Third Party Advisory
access.redhat.com / errata/RHSA-2019:0420
Third Party Advisory
access.redhat.com / errata/RHSA-2019:0832
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2699
access.redhat.com / errata/RHSA-2019:2978
bugs.chromium.org / p/project-zero/issues/detail
Issue TrackingMailing ListThird Party Advisory
git.kernel.org / linus/7b55851367136b1efd84d98fea81ba57a98304cf
PatchThird Party Advisory
gitlab.freedesktop.org / polkit/polkit/commit/c898fdf4b1aafaa04f8ada9d73d77c8bb76e2f81
PatchThird Party Advisory
gitlab.freedesktop.org / polkit/polkit/merge_requests/19
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/01/msg00021.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2019/05/msg00041.html
lists.debian.org / debian-lts-announce/2019/05/msg00042.html
support.f5.com / csp/article/K22715344
Third Party Advisory
usn.ubuntu.com / 3901-1
Third Party Advisory
usn.ubuntu.com / 3901-2
Third Party Advisory
usn.ubuntu.com / 3903-1
Third Party Advisory
usn.ubuntu.com / 3903-2
Third Party Advisory
usn.ubuntu.com / 3908-1
Third Party Advisory
usn.ubuntu.com / 3908-2
Third Party Advisory
usn.ubuntu.com / 3910-1
Third Party Advisory
usn.ubuntu.com / 3910-2
Third Party Advisory
usn.ubuntu.com / 3934-1
Third Party Advisory
usn.ubuntu.com / 3934-2
securityfocus.com / bid/106537
Third Party AdvisoryVDB Entry