# CVE-2020-28611: cgal: Multiple code execution vulnerabilities exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1

CVE-2020-28611 is fixed in cgal on 1 platform, first by DEBIAN-CVE-2020-28611, released April 18, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2020-28611
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0240
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 18, 2022

## Description

Multiple code execution vulnerabilities exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1. 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 any of these vulnerabilities. An oob read vulnerability exists in Nef_S2/SM_io_parser.h SM_io_parser<Decorator_>::read_vertex() set_first_out_edge().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | cgal Debian 12.15 (bookworm) | 5.2-3 | [DEBIAN-CVE-2020-28611](https://patchblox.com/security/data/fix/linux/debian-cve-2020-28611.md) | Apr 18, 2022 |
| Linux | cgal Debian 13.5 (trixie) | 5.2-3 | [DEBIAN-CVE-2020-28611](https://patchblox.com/security/data/fix/linux/debian-cve-2020-28611.md) | Apr 18, 2022 |
| Linux | cgal Debian 14 | 5.2-3 | [DEBIAN-CVE-2020-28611](https://patchblox.com/security/data/fix/linux/debian-cve-2020-28611.md) | Apr 18, 2022 |

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