Remote code execution in LibreOffice

1) Improper validation of array index

EUVDB-ID: #VU76612

Risk: High

CVSSv4.0: 5.7 [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:U/U:Amber]

CVE-ID: CVE-2023-0950

CWE-ID: CWE-129 - Improper Validation of Array Index

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper validation of array index when malformed spreadsheet formulas, such as AGGREGATE. A remote attacker can trick the victim to open a specially crafted file, trigger an array index underflow and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LibreOffice: 7.4.0.1 - 7.5.0.3

CPE2.3

• cpe:2.3:a:libreoffice:libreoffice:7.4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.4.3.2:*:*:*:*:*:*:*

External links

https://www.libreoffice.org/about-us/security/advisories/CVE-2023-0950

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.