Stack-based buffer overflow in Symantec Scan Engine

1) Stack-based buffer overflow

EUVDB-ID: #VU62

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-2209

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when parsing a maliciously-formed PowerPoint PPT file. A remote unauthenticated attacker can cause stacked-based buffer overflow by sending a specially crafted file to vulnerable server.

Successful exploitation of this vulnerability may result in in arbitrary code execution.

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 Scan Engine: 13.1.2.19

Symantec Data Center Security:Server (SDCS:S): 6.0 - 6.6MP1

Symantec Endpoint Protection: 12.1.6MP4

Symantec Protection Engine (SPE): 7.0.5

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=823&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. However, proof of concept for this vulnerability is available.