#VU5891 Arbitrary file disclosure in LibreOffice - CVE-2017-3157

Vulnerability identifier: #VU5891

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-2017-3157

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibreOffice
Client/Desktop applications / Office applications

Vendor: LibreOffice

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists within calc and write functionality of LibreOffice when processing embedded objects during preview of files. A remote attacker can create a specially crafted document, linked to an existing file on victims system, trick the victim into opening the document, saving it and sending back to the attacker.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary files on the system.

Mitigation
The vulnerability is fixed in the following versions: 5.1.6, 5.2.2, and 5.3.0

Vulnerable software versions

LibreOffice: 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.2.0, 5.2.1

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External links
https://www.libreoffice.org/about-us/security/advisories/cve-2017-3157/

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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.