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.
Published 2021-03-04 20:15:13
Updated 2023-05-30 06:15:17
Source Talos
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2020-35636

Probability of exploitation activity in the next 30 days: 0.91%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 81 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2020-35636

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
10.0
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.9
6.0
Talos
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2020-35636

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Secondary)
  • The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.
    Assigned by: talos-cna@cisco.com (Primary)
  • The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
    Assigned by: nvd@nist.gov (Secondary)

References for CVE-2020-35636

Products affected by CVE-2020-35636

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