ESB-2019.0739 - [Win][Linux][HP-UX][Solaris][AIX] IBM Db2: Multiple vulnerabilities 2019-03-08

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0739
 Security Bulletin: Multiple buffer overflow vulnerabilities exist in IBM
    Db2 leading to privilege escalation (CVE-2018-1922, CVE-2018-1923,
        CVE-2018-1978, CVE-2018-1980, CVE-2019-4015, CVE-2019-4016
                               8 March 2019

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

Product:           IBM Db2
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Root Compromise   -- Existing Account
                   Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-4016 CVE-2019-4015 CVE-2018-1980
                   CVE-2018-1978 CVE-2018-1923 CVE-2018-1922

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10740413

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Multiple buffer overflow vulnerabilities exist in IBM(R) Db2(R)
leading to privilege escalation (CVE-2018-1922, CVE-2018-1923, CVE-2018-1978,
CVE-2018-1980, CVE-2019-4015, CVE-2019-4016).

Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7, 10.1, 10.5, 11.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Software edition: Advanced Enterprise Server, Advanced Workgroup Server,
Enterprise Server, Express, Express-C, Person

Reference #: 0740413

Modified date: 07 March 2019

Summary

Multiple buffer overflow vulnerabilities exist in IBM(R) Db2(R) leading to
privilege escalation from an authenticated local user to either root or
instance owner.

Vulnerability Details

CVEID: CVE-2018-1922
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
is affected by buffer overflow vulnerability that can potentially result in
arbitrary code execution
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152858 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-1923
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
is affected by buffer overflow vulnerability that can potentially result in
arbitrary code execution
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152859 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-1978
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
is vulnerable to a buffer overflow, which could allow an authenticated local
attacker to execute arbitrary code on the system as root.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
154069 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-1980
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
is vulnerable to a buffer overflow, which could allow an authenticated local
attacker to execute arbitrary code on the system as root.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
154078 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2019-4015
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
is vulnerable to a buffer overflow, which could allow an authenticated local
attacker to execute arbitrary code on the system as root.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
155893 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2019-4016
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
is vulnerable to a buffer overflow, which could allow an authenticated local
attacker to execute arbitrary code on the system as root.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
155894 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, and V11.1 editions on all
platforms are affected.

Remediation/Fixes

The recommended solution is to apply the appropriate fix for this
vulnerability.

FIX:

The fix for DB2 V11.1 is in V11.1.4.4 iFix001, available for download from Fix
Central.

Customers running any vulnerable fixpack level of an affected Program, V9.7,
V10.1, V10.5, and V11.1, can download the special build containing the interim
fix for this issue from Fix Central. These special builds are available based
on the most recent fixpack level for each impacted release: DB2 V9.7 FP11,
V10.1 FP6, V10.5 FP10 and V11.1.4.4. They can be applied to any affected
fixpack level of the appropriate release to remediate this vulnerability.

                                       
+---------------+----------+----------+--------------------------------------------------------------------+
|Release        |Fixed in  |APAR      |Download URL                                                        |
|               |fix pack  |          |                                                                    |
+---------------+----------+----------+--------------------------------------------------------------------+
|V9.7           |TBD       |IT26860   |Special Build for V9.7 FP11:                                        |
|               |          |IT26883   |                                                                    |
|               |          |          |AIX 64-bit                                                          |
|               |          |IT27150   |HP-UX 64-bit                                                        |
|               |          |          |Linux 32-bit, x86-32                                                |
|               |          |IT27323   |Linux 64-bit, x86-64                                                |
|               |          |IT27417   |Linux 64-bit, POWER(TM) big endian                                  |
|               |          |          |Linux 64-bit, System z(R), System z9(R) or zSeries(R)               |
|               |          |          |Solaris 64-bit, SPARC                                               |
|               |          |          |Solaris 64-bit, x86-64                                              |
|               |          |          |Windows 32-bit, x86                                                 |
|               |          |          |Windows 64-bit, x86                                                 |
+---------------+----------+----------+--------------------------------------------------------------------+
|V10.1          |TBD       |IT26859   |Special Build for V10.1 FP6:                                        |
|               |          |IT26882   |                                                                    |
|               |          |          |AIX 64-bit                                                          |
|               |          |IT27149   |HP-UX 64-bit                                                        |
|               |          |          |Linux 32-bit, x86-32                                                |
|               |          |IT27322   |Linux 64-bit, x86-64                                                |
|               |          |IT27416   |Linux 64-bit, POWER(TM) big endian                                  |
|               |          |          |Linux 64-bit, System z(R), System z9(R) or zSeries(R)               |
|               |          |          |Solaris 64-bit, SPARC                                               |
|               |          |          |Solaris 64-bit, x86-64                                              |
|               |          |          |Windows 32-bit, x86                                                 |
|               |          |          |Windows 64-bit, x86                                                 |
+---------------+----------+----------+--------------------------------------------------------------------+
|V10.5          |TBD       |IT26858   |Special Build for V10.5 FP10:                                       |
|               |          |IT26881   |                                                                    |
|               |          |          |AIX 64-bit                                                          |
|               |          |IT27129   |HP-UX 64-bit                                                        |
|               |          |          |Linux 32-bit, x86-32                                                |
|               |          |IT27347   |Linux 64-bit, x86-64                                                |
|               |          |          |Linux 64-bit, POWER(TM) big endian                                  |
|               |          |IT27302   |Linux 64-bit, POWER(TM) little endian                               |
|               |          |IT27392   |Linux 64-bit, System z(R), System z9(R) or zSeries(R)               |
|               |          |          |Solaris 64-bit, SPARC                                               |
|               |          |          |Solaris 64-bit, x86-64                                              |
|               |          |          |Windows 32-bit, x86                                                 |
|               |          |          |Windows 64-bit, x86                                                 |
|               |          |          |Inspur                                                              |
+---------------+----------+----------+--------------------------------------------------------------------+
|V11.1          |11.1.4.4  |IT26857   |https://www-01.ibm.com/support/docview.wssuid=ibm1087475            |
|               |iFix001   |IT26878   |                                                                    |
|               |          |          |                                                                    |
|               |          |IT27148   |                                                                    |
|               |          |          |                                                                    |
|               |          |IT27364   |                                                                    |
|               |          |          |                                                                    |
|               |          |IT27321   |                                                                    |
|               |          |IT27415   |                                                                    |
+---------------+----------+----------+--------------------------------------------------------------------+

Workarounds and Mitigations

None

Change History

March 7, 2019: Original Version Published

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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