Protect yourself against future threats.
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.0222
Important: libvirt security updates
23 January 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libvirt
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Impact/Access: Access Privileged Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-5715
Reference: ASB-2018.0033
ASB-2018.0030
ASB-2018.0009
ASB-2018.0002.4
Original Bulletin:
https://access.redhat.com/errata/RHSA-2018:0108
https://access.redhat.com/errata/RHSA-2018:0109
https://access.redhat.com/errata/RHSA-2018:0110
https://access.redhat.com/errata/RHSA-2018:0111
https://access.redhat.com/errata/RHSA-2018:0112
Comment: This bulletin contains five (5) Red Hat security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: libvirt security update
Advisory ID: RHSA-2018:0108-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0108
Issue date: 2018-01-22
=====================================================================
1. Summary:
An update for libvirt is now available for Red Hat Enterprise Linux 6.7
Extended Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - x86_64
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - x86_64
3. Description:
The libvirt library contains a C API for managing and interacting with the
virtualization capabilities of Linux and other operating systems. In
addition, libvirt provides tools for remote management of virtualized
systems.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions (a commonly
used performance optimization). There are three primary variants of the
issue which differ in the way the speculative execution can be exploited.
Variant CVE-2017-5715 triggers the speculative execution by utilizing
branch target injection. It relies on the presence of a precisely-defined
instruction sequence in the privileged code as well as the fact that memory
accesses may cause allocation into the microprocessor's data cache even for
speculatively executed instructions that never actually commit (retire). As
a result, an unprivileged attacker could use this flaw to cross the syscall
and guest/host boundaries and read privileged memory by conducting targeted
cache side-channel attacks. (CVE-2017-5715)
Note: This is the libvirt side of the CVE-2017-5715 mitigation.
Red Hat would like to thank Google Project Zero for reporting this issue.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, libvirtd will be restarted
automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection
6. Package List:
Red Hat Enterprise Linux HPC Node EUS (v. 6.7):
Source:
libvirt-0.10.2-54.el6_7.7.src.rpm
x86_64:
libvirt-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-client-0.10.2-54.el6_7.7.i686.rpm
libvirt-client-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.i686.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-python-0.10.2-54.el6_7.7.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):
x86_64:
libvirt-debuginfo-0.10.2-54.el6_7.7.i686.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-devel-0.10.2-54.el6_7.7.i686.rpm
libvirt-devel-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-lock-sanlock-0.10.2-54.el6_7.7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.7):
Source:
libvirt-0.10.2-54.el6_7.7.src.rpm
i386:
libvirt-0.10.2-54.el6_7.7.i686.rpm
libvirt-client-0.10.2-54.el6_7.7.i686.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.i686.rpm
libvirt-devel-0.10.2-54.el6_7.7.i686.rpm
libvirt-python-0.10.2-54.el6_7.7.i686.rpm
ppc64:
libvirt-0.10.2-54.el6_7.7.ppc64.rpm
libvirt-client-0.10.2-54.el6_7.7.ppc.rpm
libvirt-client-0.10.2-54.el6_7.7.ppc64.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.ppc.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.ppc64.rpm
libvirt-devel-0.10.2-54.el6_7.7.ppc.rpm
libvirt-devel-0.10.2-54.el6_7.7.ppc64.rpm
libvirt-python-0.10.2-54.el6_7.7.ppc64.rpm
s390x:
libvirt-0.10.2-54.el6_7.7.s390x.rpm
libvirt-client-0.10.2-54.el6_7.7.s390.rpm
libvirt-client-0.10.2-54.el6_7.7.s390x.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.s390.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.s390x.rpm
libvirt-devel-0.10.2-54.el6_7.7.s390.rpm
libvirt-devel-0.10.2-54.el6_7.7.s390x.rpm
libvirt-python-0.10.2-54.el6_7.7.s390x.rpm
x86_64:
libvirt-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-client-0.10.2-54.el6_7.7.i686.rpm
libvirt-client-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.i686.rpm
libvirt-debuginfo-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-devel-0.10.2-54.el6_7.7.i686.rpm
libvirt-devel-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-python-0.10.2-54.el6_7.7.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.7):
x86_64:
libvirt-debuginfo-0.10.2-54.el6_7.7.x86_64.rpm
libvirt-lock-sanlock-0.10.2-54.el6_7.7.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/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/speculativeexecution
https://access.redhat.com/security/cve/CVE-2017-5715
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: libvirt security update
Advisory ID: RHSA-2018:0109-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0109
Issue date: 2018-01-22
=====================================================================
1. Summary:
An update for libvirt is now available for Red Hat Enterprise Linux 6.6
Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco Extended
Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server TUS (v. 6.6) - x86_64
3. Description:
The libvirt library contains a C API for managing and interacting with the
virtualization capabilities of Linux and other operating systems. In
addition, libvirt provides tools for remote management of virtualized
systems.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions (a commonly
used performance optimization). There are three primary variants of the
issue which differ in the way the speculative execution can be exploited.
Variant CVE-2017-5715 triggers the speculative execution by utilizing
branch target injection. It relies on the presence of a precisely-defined
instruction sequence in the privileged code as well as the fact that memory
accesses may cause allocation into the microprocessor's data cache even for
speculatively executed instructions that never actually commit (retire). As
a result, an unprivileged attacker could use this flaw to cross the syscall
and guest/host boundaries and read privileged memory by conducting targeted
cache side-channel attacks. (CVE-2017-5715)
Note: This is the libvirt side of the CVE-2017-5715 mitigation.
Red Hat would like to thank Google Project Zero for reporting this issue.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, libvirtd will be restarted
automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 6.6):
Source:
libvirt-0.10.2-46.el6_6.7.src.rpm
x86_64:
libvirt-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-client-0.10.2-46.el6_6.7.i686.rpm
libvirt-client-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-debuginfo-0.10.2-46.el6_6.7.i686.rpm
libvirt-debuginfo-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-devel-0.10.2-46.el6_6.7.i686.rpm
libvirt-devel-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-python-0.10.2-46.el6_6.7.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 6.6):
Source:
libvirt-0.10.2-46.el6_6.7.src.rpm
x86_64:
libvirt-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-client-0.10.2-46.el6_6.7.i686.rpm
libvirt-client-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-debuginfo-0.10.2-46.el6_6.7.i686.rpm
libvirt-debuginfo-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-devel-0.10.2-46.el6_6.7.i686.rpm
libvirt-devel-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-python-0.10.2-46.el6_6.7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.6):
x86_64:
libvirt-debuginfo-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-lock-sanlock-0.10.2-46.el6_6.7.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 6.6):
x86_64:
libvirt-debuginfo-0.10.2-46.el6_6.7.x86_64.rpm
libvirt-lock-sanlock-0.10.2-46.el6_6.7.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/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/speculativeexecution
https://access.redhat.com/security/cve/CVE-2017-5715
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: libvirt security update
Advisory ID: RHSA-2018:0110-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0110
Issue date: 2018-01-22
=====================================================================
1. Summary:
An update for libvirt is now available for Red Hat Enterprise Linux 6.5
Advanced Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server AUS (v. 6.5) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64
3. Description:
The libvirt library contains a C API for managing and interacting with the
virtualization capabilities of Linux and other operating systems. In
addition, libvirt provides tools for remote management of virtualized
systems.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions (a commonly
used performance optimization). There are three primary variants of the
issue which differ in the way the speculative execution can be exploited.
Variant CVE-2017-5715 triggers the speculative execution by utilizing
branch target injection. It relies on the presence of a precisely-defined
instruction sequence in the privileged code as well as the fact that memory
accesses may cause allocation into the microprocessor's data cache even for
speculatively executed instructions that never actually commit (retire). As
a result, an unprivileged attacker could use this flaw to cross the syscall
and guest/host boundaries and read privileged memory by conducting targeted
cache side-channel attacks. (CVE-2017-5715)
Note: This is the libvirt side of the CVE-2017-5715 mitigation.
Red Hat would like to thank Google Project Zero for reporting this issue.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, libvirtd will be restarted
automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 6.5):
Source:
libvirt-0.10.2-29.el6_5.15.src.rpm
x86_64:
libvirt-0.10.2-29.el6_5.15.x86_64.rpm
libvirt-client-0.10.2-29.el6_5.15.i686.rpm
libvirt-client-0.10.2-29.el6_5.15.x86_64.rpm
libvirt-debuginfo-0.10.2-29.el6_5.15.i686.rpm
libvirt-debuginfo-0.10.2-29.el6_5.15.x86_64.rpm
libvirt-devel-0.10.2-29.el6_5.15.i686.rpm
libvirt-devel-0.10.2-29.el6_5.15.x86_64.rpm
libvirt-python-0.10.2-29.el6_5.15.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.5):
Source:
libvirt-0.10.2-29.el6_5.15.src.rpm
x86_64:
libvirt-debuginfo-0.10.2-29.el6_5.15.x86_64.rpm
libvirt-lock-sanlock-0.10.2-29.el6_5.15.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/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/speculativeexecution
https://access.redhat.com/security/cve/CVE-2017-5715
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: libvirt security update
Advisory ID: RHSA-2018:0111-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0111
Issue date: 2018-01-22
=====================================================================
1. Summary:
An update for libvirt is now available for Red Hat Enterprise Linux 6.4
Advanced Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server AUS (v. 6.4) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64
3. Description:
The libvirt library contains a C API for managing and interacting with the
virtualization capabilities of Linux and other operating systems. In
addition, libvirt provides tools for remote management of virtualized
systems.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions (a commonly
used performance optimization). There are three primary variants of the
issue which differ in the way the speculative execution can be exploited.
Variant CVE-2017-5715 triggers the speculative execution by utilizing
branch target injection. It relies on the presence of a precisely-defined
instruction sequence in the privileged code as well as the fact that memory
accesses may cause allocation into the microprocessor's data cache even for
speculatively executed instructions that never actually commit (retire). As
a result, an unprivileged attacker could use this flaw to cross the syscall
and guest/host boundaries and read privileged memory by conducting targeted
cache side-channel attacks. (CVE-2017-5715)
Note: This is the libvirt side of the CVE-2017-5715 mitigation.
Red Hat would like to thank Google Project Zero for reporting this issue.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, libvirtd will be restarted
automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 6.4):
Source:
libvirt-0.10.2-18.el6_4.16.src.rpm
x86_64:
libvirt-0.10.2-18.el6_4.16.x86_64.rpm
libvirt-client-0.10.2-18.el6_4.16.i686.rpm
libvirt-client-0.10.2-18.el6_4.16.x86_64.rpm
libvirt-debuginfo-0.10.2-18.el6_4.16.i686.rpm
libvirt-debuginfo-0.10.2-18.el6_4.16.x86_64.rpm
libvirt-devel-0.10.2-18.el6_4.16.i686.rpm
libvirt-devel-0.10.2-18.el6_4.16.x86_64.rpm
libvirt-python-0.10.2-18.el6_4.16.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.4):
Source:
libvirt-0.10.2-18.el6_4.16.src.rpm
x86_64:
libvirt-debuginfo-0.10.2-18.el6_4.16.x86_64.rpm
libvirt-lock-sanlock-0.10.2-18.el6_4.16.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/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/speculativeexecution
https://access.redhat.com/security/cve/CVE-2017-5715
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: libvirt security update
Advisory ID: RHSA-2018:0112-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0112
Issue date: 2018-01-22
=====================================================================
1. Summary:
An update for libvirt is now available for Red Hat Enterprise Linux 6.2
Advanced Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server AUS (v. 6.2) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.2) - x86_64
3. Description:
The libvirt library contains a C API for managing and interacting with the
virtualization capabilities of Linux and other operating systems. In
addition, libvirt provides tools for remote management of virtualized
systems.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions (a commonly
used performance optimization). There are three primary variants of the
issue which differ in the way the speculative execution can be exploited.
Variant CVE-2017-5715 triggers the speculative execution by utilizing
branch target injection. It relies on the presence of a precisely-defined
instruction sequence in the privileged code as well as the fact that memory
accesses may cause allocation into the microprocessor's data cache even for
speculatively executed instructions that never actually commit (retire). As
a result, an unprivileged attacker could use this flaw to cross the syscall
and guest/host boundaries and read privileged memory by conducting targeted
cache side-channel attacks. (CVE-2017-5715)
Note: This is the libvirt side of the CVE-2017-5715 mitigation.
Red Hat would like to thank Google Project Zero for reporting this issue.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, libvirtd will be restarted
automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 6.2):
Source:
libvirt-0.9.4-23.el6_2.11.src.rpm
x86_64:
libvirt-0.9.4-23.el6_2.11.x86_64.rpm
libvirt-client-0.9.4-23.el6_2.11.i686.rpm
libvirt-client-0.9.4-23.el6_2.11.x86_64.rpm
libvirt-debuginfo-0.9.4-23.el6_2.11.i686.rpm
libvirt-debuginfo-0.9.4-23.el6_2.11.x86_64.rpm
libvirt-devel-0.9.4-23.el6_2.11.i686.rpm
libvirt-devel-0.9.4-23.el6_2.11.x86_64.rpm
libvirt-python-0.9.4-23.el6_2.11.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.2):
Source:
libvirt-0.9.4-23.el6_2.11.src.rpm
x86_64:
libvirt-debuginfo-0.9.4-23.el6_2.11.x86_64.rpm
libvirt-lock-sanlock-0.9.4-23.el6_2.11.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/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/speculativeexecution
https://access.redhat.com/security/cve/CVE-2017-5715
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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You have received this e-mail bulletin as a result of your organisation's
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
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NOTE: This is only the original release of the security bulletin. It may
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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
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
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