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AUSCERT External Security Bulletin Redistribution
ESB-2016.1630
Security Advisories Relating to Symantec Products - Symantec
Decomposer Engine Multiple Parsing Vulnerabilities
30 June 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Symantec products
Publisher: Symantec
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-3646 CVE-2016-3645 CVE-2016-3644
CVE-2016-2211 CVE-2016-2210 CVE-2016-2209
CVE-2016-2207
Original Bulletin:
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00
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Security Advisories Relating to Symantec Products - Symantec Decomposer Engine
Multiple Parsing Vulnerabilities
SYM16-010
June 28, 2016
Revisions
6/29/2016
Protection signatures added to Symantec Response section
Changes to the affected products tables.
Severity (CVSS v2 and CVSS v3)
CVSS Base Score CVSS Vector
RAR decompression memory access violation - High
v2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
v3 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Dec2SS buffer overflow - High
v2 9.0 AV:N/AC:L/Au:N/C:P/I:P/A:C
v3 8.6 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Dec2LHA buffer overflow - High
v2 9.0 AV:N/AC:L/Au:N/C:P/I:P/A:C
v3 8.6 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CAB decompression memory corruption - High
v2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
v3 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
MIME message modification memory corruption - High
v2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
v3 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
TNEF integer overflow - Low
0.0 AV:N/AC:L/Au:N/C:N/I:N/A:N
ZIP decompression memory access violation
v2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
v3 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overview
Symantec is aware of buffer overflow and memory corruption findings in the
AntiVirus Decomposer engine used in various configurations by multiple
Symantec products.
Affected Enterprise Products
Product Version Solution
Advanced Threat Protection (ATP) Updated via definition updates
Symantec Data Center Security:Server (SDCS:S) 6.0 Updated via definition updates
6.0MP1
6.5
6.5MP1
6.6
6.6MP1
Symantec Web Security .Cloud Updated via hosted software update, customer interface not required
Email Security Server .Cloud (ESS) Updated via hosted software update, customer interface not required
Symantec Web Gateway Updated via definition updates
Symantec Endpoint Protection (SEP) 12.1.6 MP4 and prior Update to SEP 12.1 RU6 MP5
Symantec Endpoint Protection for Mac (SEP for Mac) 12.1.6 MP4 and prior All supported product versions updated via LiveUpdateTM
Symantec Endpoint Protection for Linux (SEP for Linux) 12.1.6 MP4 and prior Update to SEP for Linux 12.1 RU6 MP5
Symantec Protection Engine (SPE) 7.0.5 and prior Update to SPE 7.0.5 HF01
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3791.html
7.5.4 and prior SPE 7.5.4 (AWS platform) should update to SPE 7.5.4 HF01
SPE 7.5.3 and prior should Update to SPE 7.5.3 HF03
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3791.html
7.8.0 Update to SPE 7.8.0 HF01 For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3791.html
Symantec Protection for SharePoint Servers (SPSS) 6.03 to 6.05 Update to Hotfix:
SPSS_6.0.3_To_6.0.5_HF_1.5
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3795.html
6.0.6 and prior Update to Hotfix:
SPSS_6.0.6_HF_1.6
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3795.html
Symantec Mail Security for Microsoft Exchange (SMSMSE) 7.0.4 and prior Update to Hotfix:
SMSMSE_7.0_3966002_HF1.1
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3794.html
7.5.4 and prior Update to Hotfix:
SMSMSE_7.5_3966008_VHF1.2
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3794.html
Symantec Mail Security for Domino (SMSDOM) 8.0.9 and prior Update to Hotfix:
SMSDOM_8.0.9_HF1.1
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3793.html
8.1.3 and prior Update to Hotfix:
SMSDOM_8.1.3_HF1.2
For more details please refer the KB link:
https://support.symantec.com/en_US/article.INFO3793.html
CSAPI 10.0.4 and prior Update to CSAPI 10.0.4 HF01
Symantec Message Gateway (SMG) SMG 10.6.1-3 and prior Update to SMG 10.6.1-4
Symantec Message Gateway for Service Providers (SMG-SP) 10.6 SMG-SP 10.6, patch 253
10.5 SMG-SP 10.5, patch 254
Affected Norton Products
Norton Product Family All Prior to NGC 22.7 Updated through LiveUpdateTM
Norton AntiVirus
Norton Security
Norton Security with Backup
Norton Internet Security
Norton 360
Norton Security for Mac All Prior to 13.0.2
Norton Power Eraser (NPE) All Prior to 5.1 Updated through LiveUpdateTM
Norton Bootable Removal Tool (NBRT) All Prior to 2016.1 New Release available on Download
Details
Parsing of maliciously-formatted container files may cause memory corruption,
integer overflow or buffer overflow in Symantecs Decomposer engine. Successful
exploitation of these vulnerabilities typically results in an
application-level denial of service but could result in arbitrary code
execution. An attacker could potentially run arbitrary code by sending a
specially crafted file to a user.
In the TNEF unpacker, the overflow does not result in any detrimental actions
due to underlying code. However this was an exposure due to improper
implementation that could potentially be leveraged further, at some point, by
a malicious individual. As such, it also was addressed in the engine update.
Symantec Response
Symantec has verified these issues and addressed them in product updates as
identified in the solution portion of the affected products matrix above. We
have also added additional checks to our Secure Development LifeCycle to
mitigate similar issues in future.
Symantec is not aware of these vulnerabilities being exploited in the wild.
To fully mitigate the identified vulnerabilities, Symantec recommends applying
the required patches to the affected products as soon as possible. This is the
only means to ensure that installed products cannot be exploited. Symantec has
released the following list of signatures in an effort to block/detect
attempts at exploitation.
Vulnerabilities Signatures LiveUpdate rev.
RAR decompression memory access violation EXP.CVE-2016-2207 20160628.037
Dec2SS buffer overflow EXP.CVE-2016-2209 20160628.037
Dec2LHA buffer overflow EXP.CVE-2016-2210 20160628.037
CAB decompression memory corruption EXP.CVE-2016-2211 20160628.037
MIME message modification memory corruption EXP.CVE-2016-3644 20160628.037
TNEF integer overflow EXP.CVE-2016-3645 20160628.037
ZIP decompression memory access violation EXP.CVE-2016-3646 20160628.037
Update Information
All Norton products have been updated through LiveUpdateTM. Customers of
Symantec Enterprise products should check the chart below to determine which
products have been updated automatically and which require product updates.
Identifying Product Update:
Product Identifying Product Update
Advanced Threat Protection (ATP) Ensure Latest Definition Updates Applied
Symantec Web Security (SWS) Ensure Latest Definition Updates Applied
Symantec Data Center Security:Server (SDCS:S) Ensure Latest Definition Updates Applied
Symantec Endpoint Protection (SEP) all platforms - Help -> About will reflect the MP5 release version which will be at least 12.1.7004.6500
Symantec Endpoint Protection for Linux (SEP for Linux)
Symantec Endpoint Protection for Mac (SEP for Mac) Scan engine version after update should be 12.1.3
Symantec Protection Engine (SPE) Support will provide notification regarding location, deployment and verification steps
https://support.symantec.com/en_US/article.INFO3791.html
Symantec Protection for SharePoint Servers (SPSS) Support will provide notification regarding location, deployment and verification steps
https://support.symantec.com/en_US/article.INFO3795.html
Symantec Mail Security for Microsoft Exchange (SMSMSE) Support will provide notification regarding location, deployment and verification steps
https://support.symantec.com/en_US/article.INFO3794.html
Symantec Mail Security for Domino (SMSDOM) Support will provide notification regarding location, deployment and verification steps
https://support.symantec.com/en_US/article.INFO3793.html
CSAPI Support will provide notification regarding location, deployment and verification steps
Symantec Message Gateway (SMG) Current installed version should be 10.6.1-4
Symantec Message Gateway for Service Providers (SMG-SP) Ensure installed version of updated binary files have the same checksum specified in the patch release notes
NOTE: If you required additional information on where to go to access support
information on your specific enterprise product please see:
https://support.symantec.com/en_US/article.TECH125408.html
Norton Family:
Product update is delivered via LiveUpdateTM. LiveUpdateTM runs automatically
at regular intervals or users can run an interactive LiveUpdateTM.
To perform LiveUpdateTM interactively, users should:
Access LiveUpdateTM in the product
Run LiveUpdateTM until all available updates are downloaded and installed
The Help -> About Box in the product UI will show the version 22.7.0.x if the
update has been successfully applied.
Best Practices
As part of normal best practices, Symantec strongly recommends the following:
Restrict access to administrative or management systems to authorized
privileged users.
Restrict remote access, if required, to trusted/authorized systems only.
Run under the principle of least privilege where possible to limit the impact
of potential exploit.
Keep all operating systems and applications current with vendor patches.
Follow a multi-layered approach to security. At a minimum, run both firewall
and anti-malware applications to provide multiple points of detection and
protection to both inbound and outbound threats.
Deploy network- and host-based intrusion detection systems to monitor network
traffic for signs of anomalous or suspicious activity. This may aid in the
detection of attacks or malicious activity related to the exploitation of
latent vulnerabilities.
Credit
Symantec would like to thank Tavis Ormandy with Google's Project Zero, for
reporting these to us and working closely with us as we addressed the issues.
References
BID: Security Focus, http://www.securityfocus.com, has assigned Bugtraq IDs
(BIDs) to these issues for inclusion in the Security Focus vulnerability
database.
CVE: These issues are candidates for inclusion in the CVE list
(http://cve.mitre.org), which standardizes names for security problems.
CVE BID Description
CVE-2016-2207 91434 RAR decompression memory access violation
CVE-2016-2209 91436 Dec2SS buffer overflow
CVE-2016-2210 91437 Dec2LHA buffer overflow
CVE-2016-2211 91438 CAB decompression memory corruption
CVE-2016-3644 91431 MIME message modification memory corruption
CVE-2016-3645 91439 TNEF integer overflow
CVE-2016 -3646 91435 ZIP decompression memory access violation
Symantec takes the security and proper functionality of our products very
seriously. As founding members of the Organization for Internet Safety
(OISafety), Symantec supports and follows responsible disclosure guidelines.
Please contact secure@symantec.com if you feel you have discovered a security
issue in a Symantec product. A member of the Symantec Product Security team
will contact you regarding your submission to coordinate any required
response. Symantec strongly recommends using encrypted email for reporting
vulnerability information to secure@symantec.com. The Symantec Product
Security PGP key can be found at the location below.
Symantec has developed a Product Vulnerability Response document outlining the
process we follow in addressing suspected vulnerabilities in our products.
This document is available below.
Symantec Vulnerability Response Policy
Copyright (c) 2016 by Symantec Corp.
Permission to redistribute this alert electronically is granted as long as it
is not edited in any way unless authorized by Symantec Product Security.
Reprinting the whole or part of this alert in any medium other than
electronically requires permission from secure@symantec.com
Disclaimer
The information in the advisory is believed to be accurate at the time of
publishing based on currently available information. Use of the information
constitutes acceptance for use in an AS IS condition. There are no warranties
with regard to this information. Neither the author nor the publisher accepts
any liability for any direct, indirect, or consequential loss or damage
arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Product Security, and
secure@symantec.com are registered trademarks of Symantec Corp. and/or
affiliated companies in the United States and other countries. All other
registered and unregistered trademarks represented in this document are the
sole property of their respective companies/owners.
* Signature names may have been updated to comply with an updated IPS
Signature naming convention. See
http://www.symantec.com/business/support/index?page=content&id=TECH152794&key=54619&actp=LIST
for more information.
Last modified on: June 28, 2016
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