CVE-2023-51103 : Security Advisory and Response
Learn about CVE-2023-51103, a floating point exception (divide-by-zero) vulnerability in mupdf 1.23.4, its impact, technical details, affected systems, exploitation, mitigation, and prevention.
A floating point exception (divide-by-zero) vulnerability was discovered in mupdf 1.23.4 that affects the function fz_new_pixmap_from_float_data() of pixmap.c.
Understanding CVE-2023-51103
This section will cover the details of the CVE-2023-51103 vulnerability.
What is CVE-2023-51103?
CVE-2023-51103 is a floating point exception (divide-by-zero) vulnerability found in mupdf 1.23.4 in the function fz_new_pixmap_from_float_data() of pixmap.c.
The Impact of CVE-2023-51103
The vulnerability can lead to potential security risks due to the divide-by-zero error in the specified function.
Technical Details of CVE-2023-51103
This section will delve into the technical aspects of CVE-2023-51103.
Vulnerability Description
The vulnerability arises from improper handling of floating point arithmetic, particularly in the fz_new_pixmap_from_float_data() function.
Affected Systems and Versions
The affected systems are those running mupdf 1.23.4. As of now, no specific vendor or product details have been provided.
Exploitation Mechanism
Exploiting this vulnerability involves triggering the divide-by-zero error in the vulnerable function.
Mitigation and Prevention
To safeguard systems from CVE-2023-51103, the following steps can be taken:
Immediate Steps to Take
- Assess if the mupdf 1.23.4 version is being used in your systems.
- Limit access to the vulnerable function fz_new_pixmap_from_float_data().
Long-Term Security Practices
- Regularly update software to newer, patched versions.
- Employ secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Stay informed about any patches or updates released by mupdf to address CVE-2023-51103.