CVE-2020-26208 : Security Advisory and Response
Learn about CVE-2020-26208, a heap-buffer-overflow vulnerability in jhead, a tool for manipulating EXIF data in Jpeg images. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
JHEAD is a command line tool for manipulating EXIF header data in Jpeg images. The vulnerability in affected versions leads to a heap-buffer-overflow, potentially causing crashes or incorrect data retrieval.
Understanding CVE-2020-26208
What is CVE-2020-26208?
CVE-2020-26208 is a heap-buffer-overflow vulnerability in jhead, a tool for handling EXIF data in Jpeg images.
The Impact of CVE-2020-26208
The vulnerability allows crafted jpeg images to trigger a heap-buffer-overflow, leading to program crashes or incorrect EXIF information retrieval.
Technical Details of CVE-2020-26208
Vulnerability Description
The issue occurs in jhead-3.04/jpgfile.c:285 ReadJpegSections due to a heap-buffer-overflow.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Crafted jpeg images can exploit the vulnerability, causing the mentioned buffer overflow.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to the latest version of jhead to mitigate the vulnerability.
Long-Term Security Practices
- Regularly update software to patch known vulnerabilities.
- Exercise caution when handling untrusted jpeg images.
Patching and Updates
Apply patches and updates provided by the jhead project to address the heap-buffer-overflow vulnerability.