CAB decompression memory corruption in Symantec Protection Engine (SPE)

1) CAB decompression memory corruption

EUVDB-ID: #VU65

Risk: High

CVSSv3.1: 6.5 [AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2211

CWE-ID: CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause memory corruption on the target system.

The vulnerability exists due to boundary error when unpacking MSPACK archives in Symantec Antivirus. A remote unauthenticated attacker can cause a remote memory corruption by sending specially crafted archive to vulnerable server.

Successful exploitation of this vulnerability may result in remote code executione.

Mitigation

Updates to resolve these issues can be installed using product update functionality. Users of Symantec Endpoint Protection (SEP), Symantec Protection Engine (SPE), Symantec Protection for SharePoint Servers (SPSS), Symantec Mail Security for Microsoft Exchange (SMSMSE) and Symantec Mail Security for Domino (SMSDOM) should apply custom patches. For more information, please refer to vendors advisory, specified in External links section.

Vulnerable software versions

Symantec Protection Engine (SPE): 7.0.5

: 12.1.6MP4

Symantec Data Center Security:Server (SDCS:S): 6.5MP1 - 6.6MP1

Symantec Scan Engine: 13.1.2.19

Symantec Protection for SharePoint Servers (SPSS): 6.0.3

Symantec Mail Security for Domino (SMSDOM): 8.0.9 - 8.1.3

Symantec Mail Security for Microsoft Exchange (SMSMSE): 6.5.8 - 7.5.4

External links

http://bugs.chromium.org/p/project-zero/issues/detail?id=816&q=label%3AVendor-Symantec

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.