Vulnerability from bitnami_vulndb
Published
2026-05-06 14:43
Modified
2026-05-06 15:10
Summary
Details

hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "java",
        "purl": "pkg:bitnami/java"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "11.0.20"
            },
            {
              "introduced": "12.0.0"
            },
            {
              "fixed": "17.0.8"
            },
            {
              "introduced": "18.0.0"
            },
            {
              "fixed": "20.0.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-25193"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:oracle:jdk:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.",
  "id": "BIT-java-2023-25193",
  "modified": "2026-05-06T15:10:05.412Z",
  "published": "2026-05-06T14:43:59.414Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://chromium.googlesource.com/chromium/src/+/e1f324aa681af54101c1f2d173d92adb80e37088/DEPS#361"
    },
    {
      "type": "WEB",
      "url": "https://github.com/harfbuzz/harfbuzz/blob/2822b589bc837fae6f66233e2cf2eef0f6ce8470/src/hb-ot-layout-gsubgpos.hh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/harfbuzz/harfbuzz/commit/85be877925ddbf34f74a1229f3ca1716bb6170dc"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KWCHWSICWVZSAXP2YAXM65JC2GR53547/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZ5M2GSAIHFPLHYJXUPQ2QDJCLWXUGO3/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25193"
    },
    {
      "type": "WEB",
      "url": "https://openjdk.org/groups/vulnerability/advisories/2023-07-18"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230725-0006/"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2023.html"
    }
  ],
  "schema_version": "1.6.2"
}


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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.