#VU13308 Out-of-bounds read in Microsoft products - CVE-2018-8246

Vulnerability identifier: #VU13308

Vulnerability risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-8246

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
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 obtain potentially sensitive information.

The vulnerability exists due to out-of-bounds read error when processing Excel document. A remote unauthenticated attacker can create a specially crafted Excel file, trick the victim into opening it and gain access to sensitive information stored in memory.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2010 Service Pack 2, 2016

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-2018-8246

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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.