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Medium USN-3717-1 4 CVEs

policykit-1 vulnerabilities

Published Jul 16, 2018 · Updated Apr 22, 2026

Summary

Tavis Ormandy discovered that PolicyKit incorrectly handled certain invalid
object paths. A local attacker could possibly use this issue to cause
PolicyKit to crash, resulting in a denial of service. This issue only
affected Ubuntu 14.04 LTS. (CVE-2015-3218)

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.
This issue only affected Ubuntu 14.04 LTS. (CVE-2015-3255)

Tavis Ormandy discovered that PolicyKit incorrectly handled duplicate
cookie values. A local attacker could use this issue to cause PolicyKit to
crash, resulting in a denial of service, or possibly escalate privileges.
This issue only affected Ubuntu 14.04 LTS. (CVE-2015-4625)

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)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS policykit-1 0.105-4ubuntu3.14.04.2
Ubuntu · 16.04 LTS 16.04:LTS policykit-1 0.105-14.1ubuntu0.1
Ubuntu · 18.04 LTS 18.04:LTS policykit-1 0.105-20ubuntu0.18.04.1

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2015-3218
  • report
    https://ubuntu.com/security/CVE-2015-3255
  • report
    https://ubuntu.com/security/CVE-2015-4625
  • report
    https://ubuntu.com/security/CVE-2018-1116