CVE-2023-2255: Remote documents loaded without prompt via IFrame
Improper access control in editor components of The Document Foundation LibreOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt. In the affected versions of LibreOffice documents that used "floating frames" linked to external files, would load the contents of those frames without prompting the user for permission to do so. This was inconsistent with the treatment of other linked content in LibreOffice. This issue affects: The Document Foundation LibreOffice 7.4 versions prior to 7.4.7; 7.5 versions prior to 7.5.3.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/libreofficeto a version that resolves this vulnerability.Fixed in 1:6.1.5-3+deb10u10Fixed in 1:7.0.4-4+deb11u7Fixed in 1:7.0.4-4+deb11u8Fixed in 4:7.4.7-1Fixed in 4:7.4.7-1+deb12u1Fixed in 4:7.6.4~rc1-1 - Upgrade
Upgrade
The Document Foundation LibreOfficeto a version that resolves this vulnerability.Fixed in 7.4.7 - Upgrade
Upgrade
The Document Foundation LibreOfficeto a version that resolves this vulnerability.Fixed in 7.5.3
Event History
Frequently Asked Questions
What is the vulnerability ID of this security issue?
The vulnerability ID is CVE-2023-2255.
What is the severity of CVE-2023-2255?
The severity of CVE-2023-2255 is medium with a CVSS score of 5.3.
How does CVE-2023-2255 affect LibreOffice?
CVE-2023-2255 allows an attacker to craft a document that would cause external links to be loaded without prompt in the editor components of The Document Foundation LibreOffice.
Which versions of LibreOffice are affected by CVE-2023-2255?
The affected versions of LibreOffice are 7.5.0 to 7.5.3 and 7.4.0 to 7.4.7.
How can I fix CVE-2023-2255?
To fix CVE-2023-2255, it is recommended to update LibreOffice to version 7.5.5 or higher.