github - ghsa-c9vc-596v-cxc3

GHSA-C9VC-596V-CXC3

Vulnerability from github – Published: 2022-05-17 03:05 – Updated: 2025-04-20 03:30

Details

When opening a Hangul Hcell Document (.cell) and processing a particular record within the Workbook stream, an index miscalculation leading to a heap overlow can be made to occur in Hancom Office 2014. The vulnerability occurs when processing data for a formula used to render a chart via the HncChartPlugin.hplg library. Due to a lack of bounds-checking when incrementing an index that is used for writing into a buffer for formulae, the application can be made to write pointer data outside its bounds which can lead to code execution under the context of the application.

Severity ?

7.8 (High)


                  
                    CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2016-4295"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-06T21:59:00Z",
    "severity": "HIGH"
  },
  "details": "When opening a Hangul Hcell Document (.cell) and processing a particular record within the Workbook stream, an index miscalculation leading to a heap overlow can be made to occur in Hancom Office 2014. The vulnerability occurs when processing data for a formula used to render a chart via the HncChartPlugin.hplg library. Due to a lack of bounds-checking when incrementing an index that is used for writing into a buffer for formulae, the application can be made to write pointer data outside its bounds which can lead to code execution under the context of the application.",
  "id": "GHSA-c9vc-596v-cxc3",
  "modified": "2025-04-20T03:30:49Z",
  "published": "2022-05-17T03:05:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4295"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/92327"
    },
    {
      "type": "WEB",
      "url": "http://www.talosintelligence.com/reports/TALOS-2016-0150"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2016-4295 (GCVE-0-2016-4295)

Vulnerability from cvelistv5 – Published: 2017-01-06 21:00 – Updated: 2024-08-06 00:25

Summary

Severity ?

No CVSS data available.

CWE

index miscalculation

Assigner

certcc

References

URL

Tags

	http://www.talosintelligence.com/reports/TALOS-20…	x_refsource_MISC
	http://www.securityfocus.com/bid/92327	vdb-entryx_refsource_BID

Impacted products

	Vendor	Product	Version
	Hancom	Hancom Office	Affected: 2014 VP Trial HCell.exe Product version: 9.1.0.2176, HCellApp.dll Product version: 9.1.0.2176 HCellBook.dll Product version: 9.1.0.2176

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JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-06T00:25:14.023Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
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            "url": "http://www.talosintelligence.com/reports/TALOS-2016-0150/"
          },
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            ],
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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "vendor": "Hancom",
          "versions": [
            {
              "status": "affected",
              "version": "2014 VP Trial HCell.exe Product version: 9.1.0.2176, HCellApp.dll Product version: 9.1.0.2176 HCellBook.dll Product version: 9.1.0.2176"
            }
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        }
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        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
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                      "version": {
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  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-C9VC-596V-CXC3

CVE-2016-4295 (GCVE-0-2016-4295)

Tags

Sightings

Nomenclature