CVE-2017-7976 Explained : Impact and Mitigation
Learn about CVE-2017-7976, a vulnerability in Artifex jbig2dec 0.13 software allowing out-of-bounds reads and writes. Find mitigation steps and impact details here.
Artifex jbig2dec 0.13 software version has a vulnerability that allows for out-of-bounds writes and reads due to an integer overflow in the jbig2_image_compose function. This can be exploited through a specially crafted .jb2 file, potentially leading to a denial of service or disclosure of sensitive information.
Understanding CVE-2017-7976
The vulnerability in jbig2dec 0.13 allows attackers to perform out-of-bounds reads and writes, posing a risk of crashing the application or leaking sensitive data.
What is CVE-2017-7976?
The CVE-2017-7976 vulnerability is a result of an integer overflow in the jbig2_image_compose function within the jbig2dec 0.13 software version. It can be exploited by manipulating a crafted .jb2 file.
The Impact of CVE-2017-7976
The exploitation of this vulnerability could lead to a denial of service, causing the application to crash, or potentially exposing sensitive information stored in the process memory.
Technical Details of CVE-2017-7976
Artifex jbig2dec 0.13 vulnerability details and affected systems.
Vulnerability Description
The vulnerability arises from an integer overflow in the jbig2_image_compose function within the jbig2dec 0.13 software version, allowing for out-of-bounds reads and writes.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by manipulating a specially crafted .jb2 file, triggering the integer overflow in the jbig2_image_compose function.
Mitigation and Prevention
Steps to mitigate and prevent the CVE-2017-7976 vulnerability.
Immediate Steps to Take
- Apply patches or updates provided by the software vendor.
- Avoid opening or processing untrusted .jb2 files.
- Implement file type and content validation mechanisms.
Long-Term Security Practices
- Regularly update software and applications to the latest versions.
- Conduct security assessments and code reviews to identify and address vulnerabilities.
- Educate users on safe file handling practices to prevent exploitation.
Patching and Updates
Ensure timely installation of patches and updates released by Artifex or relevant software vendors to address the CVE-2017-7976 vulnerability.