CVE-2020-35636 — Improper Validation of Array Index in Cgal

CWE-129 — Improper Validation of Array IndexCWE-125 — Out-of-bounds ReadCWE-843 — Type Confusion4 documents4 sources
Severity
9.8CRITICALNVD
EPSS
0.4%
top 41.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Debian CgalCgal Computational Geometry Algorithms LibraryDebian Linux
Timeline
PublishedMar 4
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages2 packages

▶debiandebian/cgal< cgal 5.2-3 (bookworm)

Also affects: Debian Linux 10.0

🔴Vulnerability Details

2
GHSA
GHSA-7jvh-xr76-gqq7: A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5↗2022-05-24
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OSV
CVE-2020-35636: A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5↗2021-03-04
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📋Vendor Advisories

1
Debian
CVE-2020-35636: cgal - A code execution vulnerability exists in the Nef polygon-parsing functionality o...↗2020
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