What’s Vulnerable › Vulnerabilities
CVE-2019-6133
- Severity: medium (CVSS 6.7 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-01-11 · updated 2026-06-17
- Weakness: CWE-362
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 lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c.
Affected products
- Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04, 18.10
- Debian Linux: 8.0
- Polkit Project Polkit: 0.115
- RedHat Enterprise Linux Desktop: 7.0, 6.0
- RedHat Enterprise Linux Server: 7.0, 6.0
- RedHat Enterprise Linux Server Aus: 7.6, 6.6
- RedHat Enterprise Linux Server Eus: 7.6
- RedHat Enterprise Linux Server Tus: 7.6
- RedHat Enterprise Linux Workstation: 7.0, 6.0
References
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00049.html
- http://www.securityfocus.com/bid/106537
- https://access.redhat.com/errata/RHSA-2019:0230
- https://access.redhat.com/errata/RHSA-2019:0420
- https://access.redhat.com/errata/RHSA-2019:0832
- https://access.redhat.com/errata/RHSA-2019:2699
- https://access.redhat.com/errata/RHSA-2019:2978
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1692
- https://git.kernel.org/linus/7b55851367136b1efd84d98fea81ba57a98304cf
- https://gitlab.freedesktop.org/polkit/polkit/commit/c898fdf4b1aafaa04f8ada9d73d77c8bb76e2f81
- https://gitlab.freedesktop.org/polkit/polkit/merge_requests/19
- https://lists.debian.org/debian-lts-announce/2019/01/msg00021.html
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