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ubuntucveUbuntu.comUB:CVE-2019-6133
HistoryJan 11, 2019 - 12:00 a.m.

CVE-2019-6133

2019-01-1100:00:00
ubuntu.com
ubuntu.com
11

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

33.0%

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.

Bugs

Notes

Author Note
mdeslaur This issue is better fixed in the kernel, adding kernel packages to this CVE.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-46.49UNKNOWN
ubuntu18.10noarchlinux< 4.18.0-16.17UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-166.216UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-143.169UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1033.35UNKNOWN
ubuntu18.10noarchlinux-aws< 4.18.0-1011.13UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1039.42UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1077.87UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1033.35~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 4.18.0-1013.13~18.04.1UNKNOWN
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CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

33.0%