Vulnerability from bitnami_vulndb
Published
2024-03-06 10:55
Modified
2025-05-20 10:02
Summary
HTTP/2 HPACK integer overflow and buffer allocation
Details

Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in MetaDataBuilder.checkSize allows for HTTP/2 HPACK header values to exceed their size limit. MetaDataBuilder.java determines if a header name or value exceeds the size limit, and throws an exception if the limit is exceeded. However, when length is very large and huffman is true, the multiplication by 4 in line 295 will overflow, and length will become negative. (_size+length) will now be negative, and the check on line 296 will not be triggered. Furthermore, MetaDataBuilder.checkSize allows for user-entered HPACK header value sizes to be negative, potentially leading to a very large buffer allocation later on when the user-entered size is multiplied by 2. This means that if a user provides a negative length value (or, more precisely, a length value which, when multiplied by the 4/3 fudge factor, is negative), and this length value is a very large positive number when multiplied by 2, then the user can cause a very large buffer to be allocated on the server. Users of HTTP/2 can be impacted by a remote denial of service attack. The issue has been fixed in versions 11.0.16, 10.0.16, and 9.4.53. There are no known workarounds.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "jenkins",
        "purl": "pkg:bitnami/jenkins"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.428.0"
            }
          ],
          "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-2023-36478"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
      "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*"
    ],
    "severity": "High"
  },
  "details": "Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in `MetaDataBuilder.checkSize` allows for HTTP/2 HPACK header values to\nexceed their size limit. `MetaDataBuilder.java` determines if a header name or value exceeds the size limit, and throws an exception if the limit is exceeded. However, when length is very large and huffman is true, the multiplication by 4 in line 295\nwill overflow, and length will become negative. `(_size+length)` will now be negative, and the check on line 296 will not be triggered. Furthermore, `MetaDataBuilder.checkSize` allows for user-entered HPACK header value sizes to be negative, potentially leading to a very large buffer allocation later on when the user-entered size is multiplied by 2. This means that if a user provides a negative length value (or, more precisely, a length value which, when multiplied by the 4/3 fudge factor, is negative), and this length value is a very large positive number when multiplied by 2, then the user can cause a very large buffer to be allocated on the server. Users of HTTP/2 can be impacted by a remote denial of service attack. The issue has been fixed in versions 11.0.16, 10.0.16, and 9.4.53. There are no known workarounds.",
  "id": "BIT-jenkins-2023-36478",
  "modified": "2025-05-20T10:02:07.006Z",
  "published": "2024-03-06T10:55:21.994Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2023/10/18/4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eclipse/jetty.project/pull/9634"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eclipse/jetty.project/releases/tag/jetty-10.0.16"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eclipse/jetty.project/releases/tag/jetty-11.0.16"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eclipse/jetty.project/releases/tag/jetty-9.4.53.v20231009"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20231116-0011/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5540"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240621-0006/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-36478"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "HTTP/2 HPACK integer overflow and buffer allocation"
}


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