Medium severity · published Jan 11, 2019
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
6.7
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0; 6.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0; 6.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.6; 6.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0; 6.0 · source: NVD
PO
Polkit · Polkit Project
0.115 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-6133
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-6133
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00049.html
Third Party Advisory
http://www.securityfocus.com/bid/106537
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0230
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0420
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0832
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2699
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