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ESB-2014.1213.2 - UPDATE [Linux][Debian] acpi-support: Root compromise - Existing account

Date: 12 August 2014

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                              ESB-2014.1213.2
                       acpi-support security update
                              12 August 2014

===========================================================================

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

Product:           acpi-support
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   Linux variants
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-1419  

Original Bulletin: 
   http://www.debian.org/security/2014/dsa-2984

Revision History:  August 12 2014: acpi-support regression update
                   July   23 2014: Initial Release

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- - -------------------------------------------------------------------------
Debian Security Advisory DSA-2984-2                   security@debian.org
http://www.debian.org/security/                          Raphael Geissert
August 11, 2014                        http://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : acpi-support
Debian Bug     : 755969

It was discovered that the acpi-support update for DSA-2984-1 would
make a laptop's power button forcibly shut the system down, instead of
triggering the configured action (usually suspend to RAM). This only
affects systems using the gnome-settings-daemon.

For reference, the original advisory follows.

CESG discovered a root escalation flaw in the acpi-support package. An
unprivileged user can inject the DBUS_SESSION_BUS_ADDRESS environment
variable to run arbitrary commands as root user via the policy-funcs
script.

For the stable distribution (wheezy), this problem has been fixed in
version 0.140-5+deb7u2.

For the testing distribution (jessie), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in
version 0.142-3.

We recommend that you upgrade your acpi-support packages.

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

Mailing list: debian-security-announce@lists.debian.org
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- - -------------------------------------------------------------------------
Debian Security Advisory DSA-2984-1                   security@debian.org
http://www.debian.org/security/                             Luciano Bello
July 22, 2014                          http://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : acpi-support
CVE ID         : CVE-2014-1419

CESG discovered a root escalation flaw in the acpi-support package. An 
unprivileged user can inject the DBUS_SESSION_BUS_ADDRESS environment 
variable to run arbitrary commands as root user via the policy-funcs 
script.

For the stable distribution (wheezy), this problem has been fixed in
version 0.140-5+deb7u1.

For the testing distribution (jessie), this problem has been fixed in
version 0.142-2.

For the unstable distribution (sid), this problem has been fixed in
version 0.142-2.

We recommend that you upgrade your acpi-support packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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                On call after hours for member emergencies only.
===========================================================================
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