USN-3717-2: PolicyKit vulnerabilities
Publication date
17 July 2018
Overview
Several security issues were fixed in PolicyKit.
Releases
Packages
- policykit-1 - framework for managing administrative policies and privileges
Details
USN-3717-1 fixed a vulnerability in PolicyKit. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that PolicyKit incorrectly handled certain duplicate
action IDs. A local attacker could use this issue to cause PolicyKit to
crash, resulting in a denial of service, or possibly escalate privileges.
(CVE-2015-3255)
Matthias Gerstner discovered that PolicyKit incorrectly checked users. A
local attacker could possibly use this issue to cause authentication
dialogs to show up for other users, leading to a denial of service or an
information leak. (CVE-2018-1116)
USN-3717-1 fixed a vulnerability in PolicyKit. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that PolicyKit incorrectly handled certain duplicate
action IDs. A local attacker could use this issue to cause PolicyKit to
crash, resulting in a denial of service, or possibly escalate privileges.
(CVE-2015-3255)
Matthias Gerstner discovered that PolicyKit incorrectly checked users. A
local attacker could possibly use this issue to cause authentication
dialogs to show up for other users, leading to a denial of service or an
information leak. (CVE-2018-1116)
Update instructions
After a standard system update you need to reboot your computer to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 12.04 precise | libpolkit-backend-1-0 – 0.104-1ubuntu1.2 | ||
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