Debian update for libreoffice

1) Arbitrary file disclosure

EUVDB-ID: #VU5891

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 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

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

Update libreoffice package to one of the following versions: 1:4.3.3-2+deb8u6, 1:5.2.3-1, 1:5.2.3-1.

Vulnerable software versions

libreoffice (Debian package): 1:4.3.3-2+deb8u1 - 1:4.3.3-2+deb8u5

CPE2.3

• cpe:2.3:a:debian:libreoffice_debian_package:1:4.3.3-2 deb8u1:*:*:*:*:debian_linux:*:*
• cpe:2.3:a:debian:libreoffice_debian_package:1:4.3.3-2 deb8u2:*:*:*:*:debian_linux:*:*
• cpe:2.3:a:debian:libreoffice_debian_package:1:4.3.3-2 deb8u3:*:*:*:*:debian_linux:*:*

External links

https://www.debian.org/security/2017/dsa-3792

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.