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                         AUSCERT Security Bulletin

                               ASB-2019.0304
  Multiple vulnerabilities have been identified in Oracle Virtualization
                              17 October 2019

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

Product:              Oracle Virtualization
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Execute Arbitrary Code/Commands -- Existing Account
                      Modify Arbitrary Files          -- Existing Account
                      Denial of Service               -- Existing Account
                      Access Confidential Data        -- Existing Account
Resolution:           Patch/Upgrade
CVE Names:            CVE-2019-3031 CVE-2019-3028 CVE-2019-3026
                      CVE-2019-3021 CVE-2019-3017 CVE-2019-3005
                      CVE-2019-3002 CVE-2019-2984 CVE-2019-2944
                      CVE-2019-2926 CVE-2019-1547 
Member content until: Saturday, November 16 2019
Reference:            ESB-2019.3749
                      ESB-2019.3747
                      ESB-2019.3693
                      ESB-2019.3480

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle VM VirtualBox, versions prior to 5.2.34, prior to 6.0.14 [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 11 new security patches for
        Oracle Virtualization. None of these vulnerabilities may be remotely
        exploitable without authentication, i.e., none may be exploited over
        a network without requiring user credentials. The English text form
        of this Risk Matrix can be found here." [1]
        
        "CVE-2019-3028
          8.8 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
        Easily exploitable vulnerability allows low privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in takeover of
        Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-3017
          8.2 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in takeover of
        Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-2944
          7.3 AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash (complete DOS)
        of Oracle VM VirtualBox as well as unauthorized update, insert or
        delete access to some of Oracle VM VirtualBox accessible data and
        unauthorized read access to a subset of Oracle VM VirtualBox
        accessible data.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-3026
          6.5 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
        Easily exploitable vulnerability allows low privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        access to critical data or complete access to all Oracle VM
        VirtualBox accessible data.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-3021
          6.5 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
        Easily exploitable vulnerability allows low privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash (complete DOS)
        of Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-2984
          6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash (complete DOS)
        of Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-3002
          6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash (complete DOS)
        of Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-3005
          6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash (complete DOS)
        of Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-3031
          6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
        VM VirtualBox, attacks may significantly impact additional products.
        Successful attacks of this vulnerability can result in unauthorized
        access to critical data or complete access to all Oracle VM
        VirtualBox accessible data.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-1547
          4.7 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
        Difficult to exploit vulnerability allows low privileged attacker
        with logon to the infrastructure where Oracle VM VirtualBox executes
        to compromise Oracle VM VirtualBox. Successful attacks of this
        vulnerability can result in unauthorized access to critical data or
        complete access to all Oracle VM VirtualBox accessible data.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14
        
        CVE-2019-2926
          2.3 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
        Easily exploitable vulnerability allows high privileged attacker with
        logon to the infrastructure where Oracle VM VirtualBox executes to
        compromise Oracle VM VirtualBox. Successful attacks of this
        vulnerability can result in unauthorized ability to cause a partial
        denial of service (partial DOS) of Oracle VM VirtualBox.
         Affects:
         o Oracle VM VirtualBox Prior to 5.2.34, prior to 6.0.14" [2]


MITIGATION

        Oracle states:
        
        "Due to the threat posed by a successful attack, Oracle strongly
        recommends that customers apply CPU fixes as soon as possible. Until
        you apply the CPU fixes, it may be possible to reduce the risk of
        successful attack by blocking network protocols required by an
        attack. For attacks that require certain privileges or access to
        certain packages, removing the privileges or the ability to access
        the packages from users that do not need the privileges may help
        reduce the risk of successful attack. Both approaches may break
        application functionality, so Oracle strongly recommends that
        customers test changes on non-production systems. Neither approach
        should be considered a long-term solution as neither corrects the
        underlying problem." [1]


REFERENCES

        [1] Oracle Critical Patch Update Advisory - October 2019
            https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

        [2] Text Form of Oracle Critical Patch Update - October 2019 Risk
            Matrices
            https://www.oracle.com/technetwork/security-advisory/cpuoct2019verbose-5072833.html

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

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