Remote code execution in Microsoft Outlook

Published: 2018-12-11
Severity High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2018-8587
CWE ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software Microsoft Outlook Subscribe
Microsoft Office
Vendor Microsoft

Security Advisory

This security advisory describes one high risk vulnerability.

1) Buffer overflow

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2018-8587

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Description

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

The vulnerability exists due to a boundary error when processing files within Microsoft Outlook. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Outlook: 2010 Service Pack 2, 2013 RT Service Pack 1, 2013 Service Pack 1, 2016

Microsoft Office: 365 ProPlus, 2010, 2010 SP2, 2013, 2013 RT, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8587

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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