CVE-2023-45139 fonttools XML External Entity Injection (XXE) Vulnerability

2024-01-1016:03:08

CWE-611

GitHub_M

www.cve.org

fonttools library

xml external entity injection

xxe vulnerability

version 4.43.0

python

subsetting module

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

31.2%

JSON

fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.

CNA Affected

[
  {
    "vendor": "fonttools",
    "product": "fonttools",
    "versions": [
      {
        "version": ">= 4.28.2, < 4.43.0",
        "status": "affected"
      }
    ]
  }
]