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                         AUSCERT Security Bulletin

                               ASB-2019.0198
                            Oracle Berkeley DB
                               17 July 2019

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

Product:              Oracle Berkeley DB
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Execute Arbitrary Code/Commands -- Existing Account
Resolution:           Patch/Upgrade
CVE Names:            CVE-2019-2871 CVE-2019-2870 CVE-2019-2869
                      CVE-2019-2868 CVE-2019-2760 
Member content until: Friday, August 16 2019

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle Berkeley DB, versions 12.1.6.1.23, 12.1.6.1.26,
           12.1.6.1.29, 12.1.6.1.36, 12.1.6.2.23, 12.1.6.2.32
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 5 new security fixes for Oracle
        Berkeley DB. None of these vulnerabilities may be remotely
        exploitable without authentication, i.e., none may be exploited over
        a network without requiring user credentials." [1]
        
        "CVE-2019-2760
          7.0 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
        Difficult to exploit vulnerability allows unauthenticated attacker
        with logon to the infrastructure where the affected system executes
        to compromise the affected system. Successful attacks require human
        interaction from a person other than the attacker. Successful attacks
        of this vulnerability can result in takeover of the affected system.
         Affects:
         o Data Store 12.1.6.1.23, 12.1.6.1.26, 12.1.6.1.29, 12.1.6.1.36,
           12.1.6.2.23, 12.1.6.2.32
        
        CVE-2019-2868
          7.0 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
        Difficult to exploit vulnerability allows unauthenticated attacker
        with logon to the infrastructure where the affected system executes
        to compromise the affected system. Successful attacks require human
        interaction from a person other than the attacker. Successful attacks
        of this vulnerability can result in takeover of the affected system.
         Affects:
         o Data Store 12.1.6.1.23, 12.1.6.1.26, 12.1.6.1.29, 12.1.6.1.36,
           12.1.6.2.23, 12.1.6.2.32
        
        CVE-2019-2869
          7.0 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
        Difficult to exploit vulnerability allows unauthenticated attacker
        with logon to the infrastructure where the affected system executes
        to compromise the affected system. Successful attacks require human
        interaction from a person other than the attacker. Successful attacks
        of this vulnerability can result in takeover of the affected system.
         Affects:
         o Data Store 12.1.6.1.23, 12.1.6.1.26, 12.1.6.1.29, 12.1.6.1.36,
           12.1.6.2.23, 12.1.6.2.32
        
        CVE-2019-2870
          7.0 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
        Difficult to exploit vulnerability allows unauthenticated attacker
        with logon to the infrastructure where the affected system executes
        to compromise the affected system. Successful attacks require human
        interaction from a person other than the attacker. Successful attacks
        of this vulnerability can result in takeover of the affected system.
         Affects:
         o Data Store 12.1.6.1.23, 12.1.6.1.26, 12.1.6.1.29, 12.1.6.1.36,
           12.1.6.2.23, 12.1.6.2.32
        
        CVE-2019-2871
          7.0 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
        Difficult to exploit vulnerability allows unauthenticated attacker
        with logon to the infrastructure where the affected system executes
        to compromise the affected system. Successful attacks require human
        interaction from a person other than the attacker. Successful attacks
        of this vulnerability can result in takeover of the affected system.
         Affects:
         o Data Store 12.1.6.1.23, 12.1.6.1.26, 12.1.6.1.29, 12.1.6.1.36,
           12.1.6.2.23, 12.1.6.2.32" [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 - July 2019
            https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

        [2] Text Form of Oracle Critical Patch Update - July 2019 Risk Matrices
            https://www.oracle.com/technetwork/security-advisory/cpujul2019verbose-5072838.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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