TA16-187A: Symantec and Norton Security Products Contain Critical Vulnerabilities

["US-CERT" <US-CERT () ncas us-cert gov>]

U.S. Department of Homeland Security US-CERT

National Cyber Awareness System:

 

TA16-187A: Symantec and Norton Security Products Contain Critical Vulnerabilities [ 
https://www.us-cert.gov/ncas/alerts/TA16-187A ] 07/05/2016 10:50 AM EDT 
Original release date: July 05, 2016

Systems Affected

All Symantec and Norton branded antivirus products

Overview

Symantec and Norton branded antivirus products contain multiple vulnerabilities. Some of these products are in 
widespread use throughout government and industry. Exploitation of these vulnerabilities could allow a remote attacker 
to take control of an affected system.

Description

The vulnerabilities are listed below:

CVE-2016-2207


  * 

Symantec Antivirus multiple remote memory corruption unpacking RAR [1 [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=810 ]]

CVE-2016-2208


  * Symantec antivirus products use common unpackers to extract malware binaries when scanning a system. A heap 
overflow vulnerability in the ASPack unpacker could allow an unauthenticated remote attacker to gain root privileges on 
Linux or OSX platforms. The vulnerability can be triggered remotely using a malicious file (via email or link) with no 
user interaction. [2 [ http://googleprojectzero.blogspot.com/2016/06/how-to-compromise-enterprise-endpoint.html ]] 

CVE-2016-2209 


  * Symantec: PowerPoint misaligned stream-cache remote stack buffer overflow [3 [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=823 ]] 

CVE-2016-2210


  * Symantec: Remote Stack Buffer Overflow in dec2lha library [4 [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=814 ]]          

CVE-2016-2211


  * Symantec: Symantec Antivirus multiple remote memory corruption unpacking MSPACK Archives [5 [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=816 ]] 

CVE-2016-3644


  * Symantec: Heap overflow modifying MIME messages [6 [ https://bugs.chromium.org/p/project-zero/issues/detail?id=818 
]]       

CVE-2016-3645


  * Symantec: Integer Overflow in TNEF decoder [7 [ https://bugs.chromium.org/p/project-zero/issues/detail?id=819 ]]    
    

CVE-2016 -3646


  * Symantec: missing bounds checks in dec2zip ALPkOldFormatDecompressor::UnShrink [8 [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=821 ]] 

 

Impact

The large number of products affected (24 products), across multiple platforms (OSX, Windows, and Linux), and the 
severity of these vulnerabilities (remote code execution at root or SYSTEM privilege) make this a very serious event. A 
remote, unauthenticated attacker may be able to run arbitrary code at root or SYSTEM privileges by taking advantage of 
these vulnerabilities. Some of the vulnerabilities require no user interaction and are network-aware, which could 
result in a wormable-event.

Solution

Symantec has provided patches or hotfixes to these vulnerabilities in their SYM16-008 [9 [ 
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2016&suid=20160516_00
 ]] and SYM16-010 [10 [ 
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00
 ]] security advisories.

US-CERT encourages users and network administrators to patch Symantec or Norton antivirus products immediately. While 
there has been no evidence of exploitation, the ease of attack, widespread nature of the products, and severity of the 
exploit may make this vulnerability a popular target.

References

  * [1] Symantec Antivirus multiple remote memory corruption unpacking RAR [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=810 ] 
  * [2] How to Compromise the Enterprise Endpoint [ 
http://googleprojectzero.blogspot.com/2016/06/how-to-compromise-enterprise-endpoint.html ] 
  * [3] Symantec: PowerPoint misaligned stream-cache remote stack buffer overflow [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=823 ] 
  * [4] Symantec: Remote Stack Buffer Overflow in dec2lha library [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=814 ] 
  * [5] Symantec: Symantec Antivirus multiple remote memory corruption unpacking MSPACK Archives [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=816 ] 
  * [6] Symantec: Heap overflow modifying MIME messages [ https://bugs.chromium.org/p/project-zero/issues/detail?id=818 
] 
  * [7] Symantec: Integer Overflow in TNEF decoder [ https://bugs.chromium.org/p/project-zero/issues/detail?id=819 ] 
  * [8] Symantec: missing bounds checks in dec2zip ALPkOldFormatDecompressor::UnShrink [ 
https://bugs.chromium.org/p/project-zero/issues/detail?id=821 ] 
  * [9] Symantec SYM16-008 security advisory [ 
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2016&suid=20160516_00
 ] 
  * [10] Symantec SYM16-010 security advisory [ 
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00
 ] 

Revision History

  * July 5, 2016: Initial Release 
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