SB2022072548 - Multiple vulnerabilities in LibreOffice

Description

This security bulletin contains information about 2 vulnerabilities.

1) Inadequate Encryption Strength (CVE-ID: CVE-2022-26307)

CWE-ID: CWE-326 - Inadequate Encryption Strength

CVSSv4: 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

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.

2) Inadequate Encryption Strength (CVE-ID: CVE-2022-26306)

CWE-ID: CWE-326 - Inadequate Encryption Strength

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

• https://www.libreoffice.org/about-us/security/advisories/cve-2022-26307
• https://www.libreoffice.org/about-us/security/advisories/cve-2022-26306