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Red Hat 7 RHSA-2016-0189 Moderate: Polkit Denial of Service Risk

Redhat Large Esm H500
Updated polkit packages that fix one security issue are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: polkit security update
Advisory ID:       RHSA-2016:0189-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:0189.html
Issue date:        2016-02-16
CVE Names:         CVE-2015-3256 
====================================================================
1. Summary:

Updated polkit packages that fix one security issue are now available for
Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

3. Description:

PolicyKit is a toolkit for defining and handling authorizations.

A denial of service flaw was found in how polkit handled authorization
requests. A local, unprivileged user could send malicious requests to
polkit, which could then cause the polkit daemon to corrupt its memory and
crash. (CVE-2015-3256)

All polkit users should upgrade to these updated packages, which contain a
backported patch to correct this issue. The system must be rebooted for
this update to take effect.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1245684 - CVE-2015-3256 polkit: Memory corruption via javascript rule evaluation

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
polkit-0.112-6.el7_2.src.rpm

x86_64:
polkit-0.112-6.el7_2.i686.rpm
polkit-0.112-6.el7_2.x86_64.rpm
polkit-debuginfo-0.112-6.el7_2.i686.rpm
polkit-debuginfo-0.112-6.el7_2.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

noarch:
polkit-docs-0.112-6.el7_2.noarch.rpm

x86_64:
polkit-debuginfo-0.112-6.el7_2.i686.rpm
polkit-debuginfo-0.112-6.el7_2.x86_64.rpm
polkit-devel-0.112-6.el7_2.i686.rpm
polkit-devel-0.112-6.el7_2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
polkit-0.112-6.el7_2.src.rpm

x86_64:
polkit-0.112-6.el7_2.i686.rpm
polkit-0.112-6.el7_2.x86_64.rpm
polkit-debuginfo-0.112-6.el7_2.i686.rpm
polkit-debuginfo-0.112-6.el7_2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

noarch:
polkit-docs-0.112-6.el7_2.noarch.rpm

x86_64:
polkit-debuginfo-0.112-6.el7_2.i686.rpm
polkit-debuginfo-0.112-6.el7_2.x86_64.rpm
polkit-devel-0.112-6.el7_2.i686.rpm
polkit-devel-0.112-6.el7_2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
polkit-0.112-6.el7_2.src.rpm

noarch:
polkit-docs-0.112-6.el7_2.noarch.rpm

ppc64:
polkit-0.112-6.el7_2.ppc.rpm
polkit-0.112-6.el7_2.ppc64.rpm
polkit-debuginfo-0.112-6.el7_2.ppc.rpm
polkit-debuginfo-0.112-6.el7_2.ppc64.rpm
polkit-devel-0.112-6.el7_2.ppc.rpm
polkit-devel-0.112-6.el7_2.ppc64.rpm

ppc64le:
polkit-0.112-6.el7_2.ppc64le.rpm
polkit-debuginfo-0.112-6.el7_2.ppc64le.rpm
polkit-devel-0.112-6.el7_2.ppc64le.rpm

s390x:
polkit-0.112-6.el7_2.s390.rpm
polkit-0.112-6.el7_2.s390x.rpm
polkit-debuginfo-0.112-6.el7_2.s390.rpm
polkit-debuginfo-0.112-6.el7_2.s390x.rpm
polkit-devel-0.112-6.el7_2.s390.rpm
polkit-devel-0.112-6.el7_2.s390x.rpm

x86_64:
polkit-0.112-6.el7_2.i686.rpm
polkit-0.112-6.el7_2.x86_64.rpm
polkit-debuginfo-0.112-6.el7_2.i686.rpm
polkit-debuginfo-0.112-6.el7_2.x86_64.rpm
polkit-devel-0.112-6.el7_2.i686.rpm
polkit-devel-0.112-6.el7_2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
polkit-0.112-6.el7_2.src.rpm

noarch:
polkit-docs-0.112-6.el7_2.noarch.rpm

x86_64:
polkit-0.112-6.el7_2.i686.rpm
polkit-0.112-6.el7_2.x86_64.rpm
polkit-debuginfo-0.112-6.el7_2.i686.rpm
polkit-debuginfo-0.112-6.el7_2.x86_64.rpm
polkit-devel-0.112-6.el7_2.i686.rpm
polkit-devel-0.112-6.el7_2.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key

7. References:

https://access.redhat.com/security/cve/CVE-2015-3256
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2016 Red Hat, Inc.
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Red Hat 7 RHSA-2016-0189 Moderate: Polkit Denial of Service Risk

red hat
Calendar Grey February 16, 2016
Dist Redhat Esm H88
Updated advisory release for polkit addressing a denial of service vulnerability in Red Hat Enterprise Linux version 7.
Updated polkit packages that fix one security issue are now available for Red Hat Enterprise Linux 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

PolicyKit is a toolkit for defining and handling authorizations.
A denial of service flaw was found in how polkit handled authorization requests. A local, unprivileged user could send malicious requests to polkit, which could then cause the polkit daemon to corrupt its memory and crash. (CVE-2015-3256)
All polkit users should upgrade to these updated packages, which contain a backported patch to correct this issue. The system must be rebooted for this update to take effect.

References

https://access.redhat.com/security/cve/CVE-2015-3256 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: polkit-0.112-6.el7_2.src.rpm
x86_64: polkit-0.112-6.el7_2.i686.rpm polkit-0.112-6.el7_2.x86_64.rpm polkit-debuginfo-0.112-6.el7_2.i686.rpm polkit-debuginfo-0.112-6.el7_2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: polkit-docs-0.112-6.el7_2.noarch.rpm
x86_64: polkit-debuginfo-0.112-6.el7_2.i686.rpm polkit-debuginfo-0.112-6.el7_2.x86_64.rpm polkit-devel-0.112-6.el7_2.i686.rpm polkit-devel-0.112-6.el7_2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: polkit-0.112-6.el7_2.src.rpm
x86_64: polkit-0.112-6.el7_2.i686.rpm polkit-0.112-6.el7_2.x86_64.rpm polkit-debuginfo-0.112-6.el7_2.i686.rpm polkit-debuginfo-0.112-6.el7_2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch: polkit-docs-0.112-6.el7_2.noarch.rpm
x86_64: polkit-debuginfo-0.112-6.el7_2.i686.rpm polkit-debuginfo-0.112-6.el7_2.x86_64.rpm polkit-devel-0.112-6.el7_2.i686.rpm polkit-devel-0.112-6.el7_2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: polkit-0.112-6.el7_2.src.rpm
noarch: polkit-docs-0.112-6.el7_2.noarch.rpm
ppc64: polkit-0.112-6.el7_2.ppc.rpm polkit-0.112-6.el7_2.ppc64.rpm polkit-debuginfo-0.112-6.el7_2.ppc.rpm polkit-debuginfo-0.112-6.el7_2.ppc64.rpm polkit-devel-0.112-6.el7_2.ppc.rpm

Read the Full Advisory


Advisory ID: RHSA-2016:0189-01
Product: Red Hat Enterprise Linux
Issue date: 2016-02-16

Topic

Updated polkit packages that fix one security issue are now available forRed Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Bugs Fixed

1245684 - CVE-2015-3256 polkit: Memory corruption via javascript rule evaluation

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