CVE-2018-12900 : What You Need to Know
Learn about CVE-2018-12900, a heap-based buffer overflow vulnerability in LibTIFF versions 3.9.3 to 4.0.9, enabling remote attackers to cause denial of service or exploit other impacts.
A heap-based buffer overflow vulnerability in LibTIFF versions allows remote attackers to cause a denial of service or potentially exploit other impacts through a manipulated TIFF file.
Understanding CVE-2018-12900
What is CVE-2018-12900?
The vulnerability exists in the cpSeparateBufToContigBuf function in the tiffcp.c file of various LibTIFF versions.
The Impact of CVE-2018-12900
This vulnerability enables remote attackers to cause a denial of service by crashing the system or potentially exploiting other unspecified impacts using a manipulated TIFF file.
Technical Details of CVE-2018-12900
Vulnerability Description
A heap-based buffer overflow in the cpSeparateBufToContigBuf function in LibTIFF versions 3.9.3 to 4.0.9 allows attackers to disrupt services or potentially execute arbitrary code.
Affected Systems and Versions
- Versions affected: 3.9.3 to 4.0.9
Exploitation Mechanism
- Attackers can exploit this vulnerability by using a crafted TIFF file to trigger the buffer overflow.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by the vendor to address the vulnerability.
- Avoid opening untrusted TIFF files.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Implement network security measures to detect and block malicious TIFF files.
Patching and Updates
- Stay informed about security advisories and updates from LibTIFF and other relevant vendors.