Multiple vulnerabilities in Apache OpenOffice

Published: 2017-10-27 | Updated: 2017-10-30

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2017-12607 CVE-2017-12608 CVE-2017-9806 CVE-2017-3157
CWE-ID	CWE-787 CWE-200
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available.
Vulnerable software	OpenOffice Client/Desktop applications / Office applications
Vendor	Apache Foundation

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU8962

Risk: High

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-12607

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The weakness exists due to boundary error in the PPTStyleSheet::PPTStyleSheet functionality. A remote attacker can send a specially crafted .ppt file, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update to version 4.1.4.

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.3

CPE2.3

External links

https://www.openoffice.org/security/cves/CVE-2017-12607.html

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 a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Out-of-bounds write

EUVDB-ID: #VU8963

Risk: High

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-12608

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The weakness exists due to boundary error in the WW8RStyle::ImportOldFormatStyles functionality. A remote attacker can send a specially crafted .doc file, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update to version 4.1.4.

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.3

CPE2.3

External links

https://www.openoffice.org/security/cves/CVE-2017-12608.html

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 a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Out-of-bounds write

EUVDB-ID: #VU8964

Risk: High

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-9806

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The weakness exists due to boundary error in the WW8Fonts::WW8Fonts function. A remote attacker can send a specially crafted .doc file, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update to version 4.1.4.

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.3

CPE2.3

External links

https://www.openoffice.org/security/cves/CVE-2017-9806.html

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 a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

4) 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 - Information exposure

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 to version 4.1.4.

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.3

CPE2.3

External links

https://www.openoffice.org/security/cves/CVE-2017-3157.html

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 a file.

Is there known malware, which exploits this vulnerability?

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