Multiple vulnerabilities in LibreOffice

Published: 2022-07-25

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-26307 CVE-2022-26306
CWE-ID	CWE-326
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	LibreOffice Client/Desktop applications / Office applications
Vendor

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Inadequate Encryption Strength

EUVDB-ID: #VU65768

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26307

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to LibreOffice uses a poor encoding of the master key for web connections in the user’s configuration database, resulting in weakening its entropy from 128 to 43 bits. A local user can decrypt victim's password.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LibreOffice: before 7.3.3.1

External links

http://www.libreoffice.org/about-us/security/advisories/cve-2022-26307

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Inadequate Encryption Strength

EUVDB-ID: #VU65767