#VU17615 Out-of-bounds read in Microsoft products - CVE-2019-0669

Vulnerability identifier: #VU17615

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-0669

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Office for Mac
Client/Desktop applications / Office applications
Microsoft Office
Client/Desktop applications / Office applications
Microsoft Excel
Client/Desktop applications / Office applications
Microsoft Office Compatibility Pack
Client/Desktop applications / Office applications

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing Excel files. A remote attacker can create a specially crafted Excel file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Office for Mac: 2016

Microsoft Office: 365 ProPlus, 2010 Service Pack 2, 2019 for Mac - 2019

Microsoft Excel: Viewer, 2010, 2013 RT Service Pack 1, 2013, 2016

Microsoft Office Compatibility Pack: Service Pack 3

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0669

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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.