CVE-2018-10119 : Exploit Details and Defense Strategies

LibreOffice software, specifically the sot/source/sdstor/stgstrms.cxx file, has a vulnerability in versions before 5.4.5.1 and 6.x before 6.0.1.1, allowing remote attackers to cause a denial of service or other impacts.

Understanding CVE-2018-10119

This CVE involves a vulnerability in LibreOffice versions prior to 5.4.5.1 and 6.x before 6.0.1.1, related to an incorrect use of an integer data type in the StgSmallStrm class.

What is CVE-2018-10119?

The vulnerability in the sot/source/sdstor/stgstrms.cxx file of LibreOffice versions before 5.4.5.1 and 6.x before 6.0.1.1 allows remote attackers to exploit the flaw by creating a specially crafted document in the structured storage ole2 wrapper file format. This could lead to a denial of service (use-after-free with write access) or other unspecified impacts.

The Impact of CVE-2018-10119

Attackers can exploit the vulnerability to cause a denial of service or potentially have other adverse effects on affected systems.

Technical Details of CVE-2018-10119

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability arises from an incorrect use of an integer data type in the StgSmallStrm class within the sot/source/sdstor/stgstrms.cxx file of LibreOffice.

Affected Systems and Versions

Versions before 5.4.5.1 and 6.x before 6.0.1.1 of LibreOffice are impacted by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by creating a specially crafted document in the structured storage ole2 wrapper file format.

Mitigation and Prevention

Protecting systems from CVE-2018-10119 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update LibreOffice to versions 5.4.5.1 or 6.0.1.1 or later to mitigate the vulnerability.
Be cautious when opening documents from untrusted sources.

Long-Term Security Practices

Regularly update software to the latest versions to patch known vulnerabilities.
Implement security best practices to prevent and detect potential threats.

Patching and Updates

Apply patches provided by LibreOffice to address the vulnerability and enhance system security.