KLA60810 Multiple vulnerabilities in Notepad++

Multiple vulnerabilities were found in Notepad++. Malicious users can exploit these vulnerabilities to execute arbitrary code, obtain sensitive information.

Below is a complete list of vulnerabilities:

1. Heap buffer vulnerability in Utf8_16_Read::convert can be exploited to execute arbitrary code.
2. Buffer read overflow vulnerability in CharDistributionAnalysis::HandleOneChar can be exploited to obtain sensitive information.
3. Buffer read overflow vulnerability in nsCodingStateMachine::NextStater can be exploited to obtain sensitive information.
4. Heap buffer read overflow vulnerability in FileManager::detectLanguageFromTextBegining can be exploited to obtain sensitive information.

Original advisories

Notepad++ v8.5.7 bug-fixes and new features:

Exploitation

Public exploits exist for this vulnerability.

Related products

Notepad++

CVE list

CVE-2023-40031 critical

CVE-2023-40036 high

CVE-2023-40164 high

CVE-2023-40166 high

Solution

Update to the latest version

Download Notepad++

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

• Notepad++ earlier than 8.5.7