CVE-2026-71202 (GCVE-0-2026-71202)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-05 06:58
VLAI
Title
raster: Integer Underflow in crop() Offset Handling Causes Capacity-Overflow Panic
Summary
The raster Rust crate's crop() function (src/editor.rs) clamps the crop width/height against source dimensions but only clamps the offset_x/offset_y parameters against 0, never against the source width/height. When an offset exceeds the corresponding source dimension, `width2 - offset_x` (or the height equivalent) underflows to a negative i32, which release builds do not trap; the negative value is then cast to usize inside Image::blank()'s Vec::with_capacity() call, triggering a capacity-overflow panic and crashing the process on a single crafted crop request.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
kosinix raster Affected: 0 , ≤ 0.2.1 (custom)
Create a notification for this product.
Credits
agrresore
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "raster",
          "programFiles": [
            "src/editor.rs"
          ],
          "vendor": "kosinix",
          "versions": [
            {
              "lessThanOrEqual": "0.2.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "agrresore"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The raster Rust crate\u0027s crop() function (src/editor.rs) clamps the crop width/height against source dimensions but only clamps the offset_x/offset_y parameters against 0, never against the source width/height. When an offset exceeds the corresponding source dimension, `width2 - offset_x` (or the height equivalent) underflows to a negative i32, which release builds do not trap; the negative value is then cast to usize inside Image::blank()\u0027s Vec::with_capacity() call, triggering a capacity-overflow panic and crashing the process on a single crafted crop request."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "value": "HIGH"
            },
            "type": "CVSS_3.1_severity"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-191",
              "description": "CWE-191 Integer Underflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T06:58:53.827Z",
        "orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "shortName": "TuranSec"
      },
      "references": [
        {
          "url": "https://github.com/kosinix/raster/issues/30"
        }
      ],
      "title": "raster: Integer Underflow in crop() Offset Handling Causes Capacity-Overflow Panic"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
    "assignerShortName": "TuranSec",
    "cveId": "CVE-2026-71202",
    "datePublished": "2026-08-05T06:58:53.827Z",
    "dateReserved": "2026-08-05T06:56:15.798Z",
    "dateUpdated": "2026-08-05T06:58:53.827Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-08-05T08:14:37+00:00",
      "cve": "CVE-2026-71202",
      "id": "CVE-2026-71202",
      "initial_release_date": "2026-08-05T06:58:53.827000+00:00",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "raster: Raster: Denial of Service via integer underflow in image cropping function",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-71202.json",
      "version": "3"
    }
  }
}



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