Integer overflow in TNEF decoder in Broadcom products - CVE-2016-3645

Vulnerability identifier: #VU67

CSH Severity: Low

CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-3645

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability does not result in any detrimental actions due to underlying code.

However, the overflow was an exposure due to improper implementation that can potentially be used in the future, at some point, by an attacker.

Symantec Protection for SharePoint Servers (SPSS)
Symantec Mail Security for Microsoft Exchange (SMSMSE)
Symantec Mail Security for Domino (SMSDOM)
Symantec Scan Engine

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.

• Exploit #365 - Symantec AntiVirus - Integer Overflow in TNEF Decoder (March 18, 2020)

• https://bugs.chromium.org/p/project-zero/issues/detail?id=819&q=label%3AVendor-Symantec

• Integer overflow in TNEF decoder in Symantec Scan Engine