CVE-2018-19788: Input Validation
First published: Sun Dec 02 2018(Updated: )
A flaw was found in PolicyKit (aka polkit) 0.115 that allows a user with a uid greater than INT_MAX to successfully execute any systemctl command.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Polkit Project Polkit | =0.115 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| debian/policykit-1 | 0.105-31+deb11u1 122-3 125-2 |
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Reference Links
- https://gitlab.freedesktop.org/polkit/polkit/issues/74
- https://security-tracker.debian.org/tracker/CVE-2018-19788
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=915332
- https://bugs.debian.org/915332
- https://www.debian.org/security/2018/dsa-4350
- https://usn.ubuntu.com/3861-1/
- https://usn.ubuntu.com/3861-2/
- https://lists.debian.org/debian-lts-announce/2019/01/msg00021.html
- https://access.redhat.com/errata/RHSA-2019:2046
- https://security.gentoo.org/glsa/201908-14
- https://access.redhat.com/errata/RHSA-2019:3232
- https://launchpad.net/bugs/cve/CVE-2018-19788
- https://seclists.org/oss-sec/2018/q4/198
- https://gitlab.freedesktop.org/zbyszek/polkit/commit/fbaab32cb4ed9ed5f1e3eea6cd317d443aa427dc
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1655926
- https://gitlab.freedesktop.org/zbyszek/polkit/commit/7c8c3abdedbb991a69bc5f1ab0f96576958b55de
- https://access.redhat.com/support/policy/updates/errata/
- https://access.redhat.com/security/cve/cve-2018-19788
- https://bugzilla.redhat.com/show_bug.cgi?id=1655925
- https://gitlab.freedesktop.org/polkit/polkit/merge_requests/14
- https://gitlab.freedesktop.org/polkit/polkit/commit/2cb40c4d5feeaa09325522bd7d97910f1b59e379
- https://gitlab.freedesktop.org/polkit/polkit/commit/b534a10727455409acd54018a9c91000e7626126
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19788
- https://nvd.nist.gov/vuln/detail/CVE-2018-19788
- https://ubuntu.com/security/CVE-2018-19788
Frequently Asked Questions
What is CVE-2018-19788?
CVE-2018-19788 is a vulnerability found in PolicyKit (aka polkit) 0.115 that allows a user with a uid greater than INT_MAX to execute any systemctl command.
What is the severity of CVE-2018-19788?
The severity of CVE-2018-19788 is critical, with a severity value of 8.8.
Which software versions are affected by CVE-2018-19788?
Software versions affected by CVE-2018-19788 include Polkit 0.115, Debian Linux 8.0, Debian Linux 9.0, and various versions of Ubuntu Linux.
How can I fix CVE-2018-19788?
To fix CVE-2018-19788, update to a patched version of the affected software.
Where can I find more information about CVE-2018-19788?
More information about CVE-2018-19788 can be found at the following references: <br> - [GitLab](https://gitlab.freedesktop.org/polkit/polkit/issues/74) <br> - [Debian Security Tracker](https://security-tracker.debian.org/tracker/CVE-2018-19788) <br> - [Debian Bug Report](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=915332)
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