ESB-2019.0473 - [Linux] IBM Cloud Private: Multiple vulnerabilities 2019-02-14

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0473
        Security Bulletin: Multiple Security Vulnerabilities affect
                           IBM(R) Cloud Private
                             14 February 2019

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

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

Product:           IBM Cloud Private
Publisher:         IBM
Operating System:  Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Privileged Data          -- Remote/Unauthenticated
                   Modify Arbitrary Files          -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Provide Misleading Information  -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16842 CVE-2018-16839 CVE-2018-16396
                   CVE-2018-16395 CVE-2018-14618 CVE-2018-5407
                   CVE-2018-0737 CVE-2018-0735 CVE-2018-0734
                   CVE-2018-0732  

Reference:         ASB-2019.0041
                   ASB-2019.0033
                   ASB-2019.0031
                   ASB-2019.0030
                   ASB-2019.0026
                   ASB-2019.0025
                   ASB-2019.0021
                   ASB-2019.0020
                   ASB-2019.0019
                   ASB-2019.0013
                   ASB-2019.0012
                   ASB-2018.0311

Original Bulletin: 
   https://www.ibm.com/support/docview.wss?uid=ibm10870936

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Security Bulletin: Multiple Security Vulnerabilities affect IBM(R) Cloud Private
- - fluentd

More support for: IBM Cloud Private

Software version: 3.1.2

Operating system(s): Linux

Reference #: 0870936

Modified date: 12 February 2019

Summary

IBM Cloud Private fluentd component is vulnerable to multiple security
vulnerabilities

Vulnerability Details

CVEID: CVE-2018-16396
DESCRIPTION: Ruby could allow a remote attacker to bypass security
restrictions, caused by the failure to properly check security controls. By
sending a specially crafted Array#pack and String#unpack array, an attacker
could exploit this vulnerability to bypass security controls on the target
system.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
153078 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:H/A:N)

CVEID: CVE-2018-16395
DESCRIPTION: Ruby could allow a remote attacker to bypass security
restrictions, caused by a flaw when comparing two OpenSSL::X509::Name objects
using == in the OpenSSL library. By sending specially-crafted arguments, an
attacker could exploit this vulnerability to to create an illegitimate
certificate that may be accepted as legitimate.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
153077 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:H/A:N)

CVEID: CVE-2018-14618
DESCRIPTION: cURL libcurl is vulnerable to a buffer overflow, caused by an
integer overflow flaw in the Curl_ntlm_core_mk_nt_hash internal function in
the NTLM authentication code. By sending an overly long password, a remote
attacker could overflow a buffer and execute arbitrary code and cause the
application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
149359 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-16842
DESCRIPTION: cURL could allow a remote attacker to obtain sensitive
information, caused by a heap-based buffer over-read in the display function
in the command line tool. By sending a specially-crafted request, a remote
attacker could exploit this vulnerability to obtain sensitive information or
cause a denial of service condition.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152300 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:L)

CVEID: CVE-2018-16839
DESCRIPTION: cURL is vulnerable to a denial of service, caused by the
incorrect verification of the passed-in lengths for the name and password
fields by the Curl_auth_create_plain_message function. By sending a user name
that exceeds 2 GB, an attacker could overflow a buffer and cause a denial of
service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152298 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:N/A:N)

CVEID: CVE-2018-0737
DESCRIPTION: OpenSSL could allow a local attacker to obtain sensitive
information, caused by a cache-timing side channel attack in the RSA Key
generation algorithm. An attacker with access to mount cache timing attacks
during the RSA key generation process could exploit this vulnerability to
recover the private key and obtain sensitive information.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
141679 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2018-0735
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by a timing side channel attack in the ECDSA signature
algorithm. An attacker could exploit this vulnerability using variations in
the signing algorithm to recover the private key.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152086 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-2018-0734
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by a timing side channel attack in the DSA signature
algorithm. An attacker could exploit this vulnerability using variations in
the signing algorithm to recover the private key.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152085 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-2018-0732
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the
sending of a very large prime value to the client by a malicious server during
key agreement in a TLS handshake. By spending an unreasonably long period of
time generating a key for this prime, a remote attacker could exploit this
vulnerability to cause the client to hang.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
144658 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-2018-5407
DESCRIPTION: Multiple SMT/Hyper-Threading architectures and processors could
allow a local attacker to obtain sensitive information, caused by execution
engine sharing on Simultaneous Multithreading (SMT) architecture. By using the
PortSmash new side-channel attack, an attacker could run a malicious process
next to legitimate processes using the architectures parallel thread running
capabilities to leak encrypted data from the CPU's internal processes. Note:
This vulnerability is known as PortSmash.
CVSS Base Score: 5.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152484 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

IBM Cloud Private 3.1.2

Remediation/Fixes

For IBM Cloud Private 3.1.2, apply patch

  o IBM Cloud Private 3.1.2.0 Patch - fluentd  

Workarounds and Mitigations

None


Change History

12 February 2019 - original document published


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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