Multiple vulnerabilities in LibreOffice



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
 LibreOffice
Client/Desktop applications / Office applications

Vendor LibreOffice

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Inadequate Encryption Strength

EUVDB-ID: #VU65768

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

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: All versions

CPE2.3 External links

https://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.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

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

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-26306

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 weak initialization vector for encrypting passwords for web connections in the user’s configuration database. A local user can decrypt victim's password.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LibreOffice: All versions

CPE2.3
External links

https://www.libreoffice.org/about-us/security/advisories/cve-2022-26306


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.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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