ESB-2019.0231 - [Debian] policykit-1: Unauthorised access - Existing account 2019-01-29

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0231
            [SECURITY] [DLA 1644-1] policykit-1 security update
                              29 January 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           policykit-1
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Unauthorised Access -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-6133 CVE-2018-19788 

Reference:         ESB-2019.0150
                   ESB-2018.3797

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/01/msg00021.html

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Package        : policykit-1
Version        : 0.105-15~deb8u4
CVE ID         : CVE-2018-19788 CVE-2019-6133

Two vulnerabilities were found in Policykit, a framework for managing
administrative policies and privileges:

CVE-2018-19788

    It was discovered that incorrect processing of very high UIDs in
    Policykit could result in authentication bypass.

CVE-2019-6133

    Jann Horn of Google found that Policykit doesn't properly check
    if a process is already authenticated, which can lead to an
    authentication reuse by a different user.

For Debian 8 "Jessie", these problems have been fixed in version
0.105-15~deb8u4.

We recommend that you upgrade your policykit-1 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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