CVE-2019-6133
Published: 11 January 2019
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.
From the Ubuntu security team
Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations.
Priority
Medium
CVSS 3 base score: 6.7
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-46.49)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-143.169)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.13.0-166.216)
|
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 7b55851367136b1efd84d98fea81ba57a98304cf |
||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1033.35)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1077.87)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.4.0-1039.42)
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1033.35~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.18.0-1013.13~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1040.44)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.15.0-1040.44~14.04.1)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.18.0-1013.13~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1040.44)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(was needed ESM criteria)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1028.29)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1028.29~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1028.29)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1030.32)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-1011.11~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.18.0-16.17~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-46.49~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-15.16~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-46.49~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1030.30)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1041.47)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [end-of-life])
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [end-of-life])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [end-of-life])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.4.0-143.169~14.04.2)
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1034.39)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1009.11)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1009.11~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1032.34)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1104.112)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(5.0~rc2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1053.57)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1108.113)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
policykit-1 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(0.105-20ubuntu0.18.04.5)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(0.105-14.1ubuntu0.5)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(0.105-4ubuntu3.14.04.6)
|
|
|
Patches: Upstream: https://gitlab.freedesktop.org/polkit/polkit/commit/c898fdf4b1aafaa04f8ada9d73d77c8bb76e2f81 |
||
Notes
| Author | Note |
|---|---|
| mdeslaur | This issue is better fixed in the kernel, adding kernel packages to this CVE. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6133
- https://gitlab.freedesktop.org/polkit/polkit/merge_requests/19
- https://git.kernel.org/linus/7b55851367136b1efd84d98fea81ba57a98304cf
- https://usn.ubuntu.com/usn/usn-3901-1
- https://usn.ubuntu.com/usn/usn-3901-2
- https://usn.ubuntu.com/usn/usn-3903-1
- https://usn.ubuntu.com/usn/usn-3903-2
- https://usn.ubuntu.com/usn/usn-3908-1
- https://usn.ubuntu.com/usn/usn-3908-2
- https://usn.ubuntu.com/usn/usn-3910-1
- https://usn.ubuntu.com/usn/usn-3910-2
- https://usn.ubuntu.com/usn/usn-3934-1
- https://usn.ubuntu.com/usn/usn-3934-2
- NVD
- Launchpad
- Debian