synced 12 MIN AGO
01 Record

CVE-2019-6133

In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.5% of scored records. A rank, not a probability.
NVD base score
6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-01-11 14:00Z7 YR AGO
Last updated
2024-08-04 20:16Z2 YR AGO
Reserved
2019-01-11
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
  • CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase
Data version
5.1
Document digest
3ffdde2e79109d46df515833f1f0cc28e4699083e5d4c41ffcd1c3be8cdd2acf

05 Affected products

VendorProductVersionsPlatforms
canonicalubuntu_linuxNot specified—
debiandebian_linuxNot specified—
polkit_projectpolkitNot specified—
redhatenterprise_linuxNot specified—
redhatenterprise_linux_desktopNot specified—
redhatenterprise_linux_serverNot specified—
redhatenterprise_linux_server_ausNot specified—
redhatenterprise_linux_server_eusNot specified—
redhatenterprise_linux_server_tusNot specified—
redhatenterprise_linux_workstationNot specified—
redhatrhel_ausNot specified—
redhatrhel_eusNot specified—
redhatrhev_hypervisorNot specified—

06 References

07 Fixed in

Arch Linux

  • polkit
    Fixed in 0.116-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • linux
    Fixed in 4.19.16-1
  • policykit-1
    Fixed in 0.105-25

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 4.19.16-1
  • policykit-1
    Fixed in 0.105-25

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 4.19.16-1
  • policykit-1
    Fixed in 0.105-25

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • linux
    Fixed in 3.13.0-166.216
  • linux-aws
    Fixed in 4.4.0-1039.42
  • linux-azure
    Fixed in 4.15.0-1040.44~14.04.1
  • linux-lts-xenial
    Fixed in 4.4.0-143.169~14.04.2
  • policykit-1
    Fixed in 0.105-4ubuntu3.14.04.6

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux
    Fixed in 4.4.0-143.169
  • linux-aws
    Fixed in 4.4.0-1077.87
  • linux-aws-hwe
    Fixed in 4.15.0-1033.35~16.04.1
  • linux-azure
    Fixed in 4.15.0-1040.44
  • linux-gcp
    Fixed in 4.15.0-1028.29~16.04.1
  • linux-hwe
    Fixed in 4.15.0-46.49~16.04.1
  • linux-kvm
    Fixed in 4.4.0-1041.47
  • linux-oracle
    Fixed in 4.15.0-1009.11~16.04.1
  • linux-raspi2
    Fixed in 4.4.0-1104.112
  • linux-snapdragon
    Fixed in 4.4.0-1108.113
  • policykit-1
    Fixed in 0.105-14.1ubuntu0.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • linux
    Fixed in 4.15.0-46.49
  • linux-aws
    Fixed in 4.15.0-1033.35
  • linux-azure
    Fixed in 4.18.0-1013.13~18.04.1
  • linux-gcp
    Fixed in 4.15.0-1028.29
  • linux-hwe
    Fixed in 4.18.0-16.17~18.04.1
  • linux-kvm
    Fixed in 4.15.0-1030.30
  • linux-oem
    Fixed in 4.15.0-1034.39
  • linux-oracle
    Fixed in 4.15.0-1009.11
  • linux-raspi2
    Fixed in 4.15.0-1032.34
  • linux-snapdragon
    Fixed in 4.15.0-1053.57
  • policykit-1
    Fixed in 0.105-20ubuntu0.18.04.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • linux-azure-fde
    No fix yet
  • linux-gke
    No fix yet
  • linux-raspi2
    No fix yet
  • linux-riscv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux-intel-iot-realtime
    No fix yet
  • linux-realtime
    No fix yet
  • linux-riscv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • linux-azure-6.11
    No fix yet
  • linux-gcp-6.11
    No fix yet
  • linux-hwe-6.11
    No fix yet
  • linux-lowlatency-hwe-6.11
    No fix yet
  • linux-raspi-realtime
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • linux-azure-fde-5.15
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 16.04 LTS

  • linux-fips
    Fixed in 4.4.0-1008.10
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.