CVE-2022-31630 (GCVE-0-2022-31630)

Vulnerability from cvelistv5 – Published: 2022-11-14 06:53 – Updated: 2024-08-03 07:26
VLAI
Title
OOB read due to insufficient input validation in imageloadfont()
Summary
In PHP versions prior to 7.4.33, 8.0.25 and 8.1.12, when using imageloadfont() function in gd extension, it is possible to supply a specially crafted font file, such as if the loaded font is used with imagechar() function, the read outside allocated buffer will be used. This can lead to crashes or disclosure of confidential information. 
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
  • CWE-190 - Integer Overflow or Wraparound
Assigner
php
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 7.4.x , < 7.4.33 (custom)
Affected: 8.0.x , < 8.0.25 (custom)
Affected: 8.1.x , < 8.1.12 (custom)
Create a notification for this product.
Date Public
2022-10-24 06:40
Credits
cmb@php.net cmb@php.net
Show details on NVD website
To clipboard 

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      "cve": "CVE-2022-31630",
      "id": "CVE-2022-31630",
      "initial_release_date": "2022-10-27T00:00:00+00:00",
      "product_status:fixed": "1045",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "php: OOB read due to insufficient input validation in imageloadfont()",
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      "version": "3"
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      "current_release_date": "2026-07-19T18:11:37Z",
      "cve": "CVE-2022-31630",
      "id": "CVE-2022-31630",
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      "product_status:known_not_affected": "540",
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      "title": "SUSE CVE CVE-2022-31630",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-31630.json",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.