Multiple vulnerabilities in LibreOffice
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-12802 CVE-2020-12803 |
| CWE-ID | CWE-264 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
LibreOffice Client/Desktop applications / Office applications |
| Vendor | LibreOffice |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU28799
Risk: Medium
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12802
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to application does not properly impose security restrictions on remote graphic links loaded from docx documents, when LibreOffice has a 'stealth mode' enabled. A remote attacker can bypass implemented restriction and cause the application to load graphic links from untrused resources.
Install updates from vendor's website.
Vulnerable software versionsLibreOffice: 6.3.0.0 - 6.3.6.2
External linkshttp://www.libreoffice.org/about-us/security/advisories/CVE-2020-12802
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.
2) Input validation error
EUVDB-ID: #VU28800
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12803
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to overwrite arbitrary files on the system.
The vulnerability exists due to insufficient validation of user-supplied input when processing submittable forms in ODF documents. LibreOffice allows to submit data to forms, available via the file:// URI. A remote attacker can create a specially crafted form, trick the victim into submitting it and overwrite arbitrary files on the system with privileges of the current user.
Install updates from vendor's website.
Vulnerable software versionsLibreOffice: 6.3.0.0 - 6.3.6.2
External linkshttp://www.libreoffice.org/about-us/security/advisories/CVE-2020-12803
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.
