CVE-2020-35636

CRITICAL 9.8CVE-2020-35636 · Published 04/03/2021 · updated 17/06/2026

In short

CVE-2020-35636 is a CRITICAL (CVSS 9.8) vulnerability affecting computational geometry algorithms library (cgal).
Chance of exploitation in the next 30 days (EPSS): 3.3%, higher than 88.5% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
computational geometry algorithms library cgal	`= 5.1.1`	No fix yet

Description

A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1 in Nef_S2/SNC_io_parser.h SNC_io_parser::read_sface() sfh->volume() OOB read. 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.

References

lists.debian.org/debian-lts-announce/2022/12/msg00011.html · Mailing List
security.gentoo.org/glsa/202305-34
talosintelligence.com/vulnerability_reports/TALOS-2020-1225 · Exploit

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Package

Affected versions

Patched versions

computational geometry algorithms library

cgal

= 5.1.1

No fix yet

Description

More vulnerabilities in computational geometry algorithms library

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