Debian update for libreoffice



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2019-9848
CVE-2019-9849
CWE-ID CWE-94
CWE-264
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
 libreoffice (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Code Injection

EUVDB-ID: #VU19223

Risk: High

CVSSv4.0: 8.4 [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:A/U:Amber]

CVE-ID: CVE-2019-9848

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in LibreLogo component, bundled with LibreOffice application. A remote attacker can create a specially crafted document, trick the victim into opening it and execute arbitrary python code on the target system without displaying any warnings.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update libreoffice package to one of the following versions: 1:5.2.7-1+deb9u9, 1:6.1.5-3+deb10u2.

Vulnerable software versions

libreoffice (Debian package): 1:5.2.7-1+deb9u1 - 1:5.2.7-1+deb9u4

CPE2.3 External links

https://www.debian.org/security/2019/dsa-4483


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?

Yes. This vulnerability is being exploited in the wild.

2) Security restrictions bypass

EUVDB-ID: #VU19225

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-9849

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to incorrect implementation of stealth mode feature, intended as an additional level of security that allows to retrieve online content into document from trusted resources only. A remote attacker can create a specially crafted document with bullet graphics, bypass the intended security restrictions and make the application retrieve data from arbitrary external sources.

Mitigation

Update libreoffice package to one of the following versions: 1:5.2.7-1+deb9u9, 1:6.1.5-3+deb10u2.

Vulnerable software versions

libreoffice (Debian package): 1:5.2.7-1+deb9u1 - 1:5.2.7-1+deb9u4

CPE2.3 External links

https://www.debian.org/security/2019/dsa-4483


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.



###SIDEBAR###