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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.2083
   Security Bulletin: Multiple vulnerabilities in MD5 Signature and Hash
Algorithm, glibc and OpenSSL affect IBM Netezza Firmware Diagnostics Tools
                             2 September 2016

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

Product:           IBM Netezza Firmware Diagnostics Tools
Publisher:         IBM
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Access Privileged Data          -- Remote/Unauthenticated      
                   Denial of Service               -- Remote/Unauthenticated      
                   Provide Misleading Information  -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-2842 CVE-2016-0799 CVE-2016-0798
                   CVE-2016-0797 CVE-2016-0705 CVE-2016-0702
                   CVE-2015-7575 CVE-2015-7547 CVE-2015-3197
                   CVE-2015-3196 CVE-2015-3195 CVE-2015-3194

Reference:         ASB-2016.0074
                   ASB-2016.0043
                   ASB-2016.0004
                   ESB-2016.0543.2
                   ESB-2016.0372
                   ESB-2016.0258
                   ESB-2016.0250
                   ESB-2016.0047
                   ESB-2015.3042

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21980965

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Security Bulletin: Multiple vulnerabilities in MD5 Signature and Hash
Algorithm, glibc and OpenSSL affect IBM Netezza Firmware Diagnostics Tools

Security Bulletin

Document information

More support for:

PureData System for Analytics

Software version:

1.0.0

Operating system(s):

Platform Independent

Software edition:

All Editions

Reference #:

1980965

Modified date:

2016-08-31

Summary

The MD5 "Sloth" vulnerability on TLS 1.2, glibc and OpenSSL are used by IBM
Netezza Firmware Diagnostics Tools. IBM Netezza Firmware Diagnostics Tools
has addressed the applicable CVEs.

Vulnerability Details

CVEID:

CVE-2015-7575

DESCRIPTION:

The TLS protocol could allow weaker than expected security caused by a
collision attack when using the MD5 hash function for signing a
ServerKeyExchange message during a TLS handshake. An attacker could exploit
this vulnerability using man-in-the-middle techniques to impersonate a TLS
server and obtain credentials.

CVSS Base Score: 7.1

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/109415

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N)

CVEID:

CVE-2015-7547

DESCRIPTION:

GNU C Library (glibc) is vulnerable to a stack-based buffer overflow, caused
by improper bounds checking by the nss_dns backend for the getaddrinfo()
function when performing dual A/AAAA DNS queries. By sending a specially
crafted DNS response, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.

CVSS Base Score: 8.1

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/110662

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:

CVE-2016-0705

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a double-free error
when parsing DSA private keys. An attacker could exploit this vulnerability
to corrupt memory and cause a denial of service.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/111140

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:

CVE-2016-0798

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a memory leak in SRP
servers. An attacker could exploit this vulnerability using a specially
crafted username value to cause a denial of service.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/111141

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:

CVE-2016-0797

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a NULL pointer
dereference in the BN_hex2bn/BN_dec2bn() function. An attacker could exploit
this vulnerability using specially crafted data to cause a denial of service.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/111142

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:

CVE-2016-0799

DESCRIPTION:

OpenSSL could allow a remote attacker to obtain sensitive information, caused
by a memory error in the BIO_*printf() functions. An attacker could exploit
this vulnerability using specially crafted data to trigger an out-of-bounds
read.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/111143

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:

CVE-2016-0702

DESCRIPTION:

OpenSSL could allow a local attacker to obtain sensitive information, caused
by a side-channel attack against a system based on the Intel Sandy-Bridge
microarchitecture. An attacker could exploit this vulnerability to recover
RSA keys.

CVSS Base Score: 2.9

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/111144

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:

CVE-2016-2842

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by the failure to verify
that a certain memory allocation succeeds by the doapr_outch function. A
remote attacker could exploit this vulnerability using a specially crafted
string to cause an out-of-bounds write or consume an overly large amount of
resources.

CVSS Base Score: 7.5

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/111304

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:

CVE-2015-3197

DESCRIPTION:

OpenSSL could allow a remote attacker to conduct man-in-the-middle attacks,
caused by an error related to the negotiation of disabled SSLv2 ciphers by
malicious SSL/TLS clients. An attacker could exploit this vulnerability to
conduct man-in-the-middle attacks.

CVSS Base Score: 5.4

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/110235

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

CVEID:

CVE-2015-3194

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a NULL pointer
dereference when verifying certificates via a malformed routine. An attacker
could exploit this vulnerability using signature verification routines with
an absent PSS parameter to cause any certificate verification operation to
crash.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108503

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:

CVE-2015-3195

DESCRIPTION:

OpenSSL could allow a remote attacker to obtain sensitive information, caused
by a memory leak in a malformed X509_ATTRIBUTE structure. An attacker could
exploit this vulnerability to obtain CMS data and other sensitive
information.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108504

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:

CVE-2015-3196

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a race condition when
PSK identity hints are received by a multi-threaded client and the SSL_CTX
structure is updated with the incorrect value. An attacker could exploit this
vulnerability to possibly corrupt memory and cause a denial of service.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108505

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM Netezza Firmware Diagnostics Tools 4.3.1.1 (and prior releases).

Remediation/Fixes

Upgrade the IBM Netezza Firmware Diagnostics Tools to 4.3.1.2 
< Link to Fix Central >

Once updates have been applied, any process using glibc will need to be
restarted. Given that nearly all system processes use glibc, rebooting both
hosts after upgrading is suggested.

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References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

None

Change History

31 July 2016: 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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