CVE-2023-44441: GIMP DDS File Parsing Heap-based Buffer Overflow Vulnerability
Introduction to CVE-2023-44441
CVE-2023-44441 is a significant vulnerability affecting the GIMP application, specifically identified as a heap-based buffer overflow during the parsing of DDS (DirectDraw Surface) files. This flaw can lead to remote code execution (RCE) when a victim interacts with a malicious file or webpage.
Description of the Vulnerability
The vulnerability stems from improper validation of the length of user-supplied data before it is copied to a heap-based buffer. Consequently, this oversight allows an attacker to execute arbitrary code within the context of the currently running process. It was reported under the advisory ID ZDI-23-1592 and has been tracked through user calls to open compromised DDS files.
Affected Products:- GIMP 2.10.34 (revision 2)
Impact Assessment
According to the Common Vulnerability Scoring System (CVSS) v3.0, CVE-2023-44441 carries a base score of 7.8, indicating a high severity level. The primary attributes influencing this score include:
- Attack Vector: Network (AV:L)
- Attack Complexity: Low (AC:L)
- User Interaction: Required (UI:R)
This highlights the ease with which the vulnerability could be exploited, provided a user interacts with a malicious DDS file.
Mitigation Strategies
Organizations utilizing GIMP must be proactive in their approach to mitigate potential exploitation risks from CVE-2023-44441. Below are recommended strategies:
1. Update GIMP:Ensure that GIMP is updated to the latest version, as newer releases may contain patches for known vulnerabilities. Specifically, update to GIMP 2.10.36 or a subsequent version that addresses this issue.
2. User Awareness Training:Educate users about the dangers of opening files from untrusted sources, particularly DDS files or any file types associated with this vulnerability. Training should also include recognizing suspicious links and files.
3. Implement Security Software:Deploy security measures including antivirus and anti-malware solutions that can detect and block malicious files before they are opened.
4. Monitor and Log Activities:Regularly monitor network activities, log access, and analyze behaviors associated with using GIMP, to identify any unusual activities that could suggest exploitation attempts.
5. Apply Principle of Least Privilege:Limit user permissions and access levels within GIMP to reduce the risk of exposure to potential attacks.
Conclusion
While CVE-2023-44441 poses a real threat to users of GIMP, understanding the vulnerability, its implications, and executing proper mitigation strategies can significantly lower risk. Regular updates, user education, and proactive security measures can help safeguard against exploitation and maintain a secure operating environment.