CVE-2020-35634: Out-of-bounds Read
First published: Mon Aug 30 2021(Updated: )
A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1. An oob read vulnerability exists in Nef_S2/SNC_io_parser.h SNC_io_parser<EW>::read_sface() sfh->boundary_entry_objects Sloop_of. A specially crafted malformed file can lead to an out-of-bounds read and type confusion, which could lead to code execution. An attacker can provide malicious input to trigger this vulnerability.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CGAL Computational Geometry Algorithms Library | =5.1.1 | |
| Debian Linux | =10.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-35634?
CVE-2020-35634 is considered a critical vulnerability due to its potential for code execution through out-of-bounds read in CGAL.
How does CVE-2020-35634 impact affected systems?
CVE-2020-35634 may allow an attacker to execute arbitrary code by exploiting a specially crafted malformed file.
How do I fix CVE-2020-35634?
To mitigate CVE-2020-35634, users should upgrade to a patched version of CGAL above 5.1.1.
Which software versions are vulnerable to CVE-2020-35634?
CVE-2020-35634 affects CGAL version 5.1.1 and Debian Linux version 10.0.
What are the symptoms of CVE-2020-35634 exploitation?
Exploitation of CVE-2020-35634 may lead to unexpected application crashes or unauthorized remote code execution.
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