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AUSCERT Security Bulletin
ASB-2016.0024
Multiple vulnerabilities have been identified in Tenable SecurityCenter
9 March 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Tenable SecurityCenter
Operating System: Linux variants
Network Appliance
Virtualisation
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-8394 CVE-2015-8393 CVE-2015-8391
CVE-2015-8390 CVE-2015-8389 CVE-2015-8387
CVE-2015-8386
Member content until: Friday, April 8 2016
Reference: ESB-2016.0366
ESB-2016.0300
ESB-2016.0255
OVERVIEW
Multiple vulnerabilities have been identified in Tenable
SecurityCenter versions 5.0.2, 5.1.0, 5.2.0. [1]
IMPACT
The vendor has provided the following details regarding the
vulnerabilities:
"PHP bundles the Perl-Compatible Regular Expressions (PCRE) library
for RegExp parsing, which SecurityCenter implements." [1]
"CVE-2015-8386 - PCRE lookbehind Assertion Mutual Recursion Handling
Stack Overflow DoS
CVE-2015-8387 - PCRE RegExp Subroutine Call Handling Integer
Overflow DoS
CVE-2015-8389 - PCRE RegExp Pattern Handling Infinite Recursion DoS
CVE-2015-8390 - PCRE RegExp Character Class Substring Handling
Uninitialized Memory Read DoS
CVE-2015-8393 - PCRE pcregrep Binary File -q Option Handling
Information Disclosure
CVE-2015-8394 - PCRE RegExp digits Conditions Handling Integer
Overflow DoS
CVE-2015-8391 - PCRE pcre_compile.c pcre_compile() Function RegExp
Nesting Handling CPU Consumption DoS" [1]
MITIGATION
Tenable advises users a patch was released for SecurityCenter, which
applies PHP 5.6.18 ans PCRE 8.38, effectively correcting these
issues. [1]
Tenable also advises SecurityCenter 5.3.0, due for release, will not
be vulnerable to these issues. [1]
REFERENCES
[1] [R1] PHP 5.6.18 / PCRE 8.38 Vulnerabilities Affect Tenable
SecurityCenter
https://www.tenable.com/security/tns-2016-04
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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