gsd-2023-34462
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final.
Aliases
Aliases
CVE-2023-34462


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-34462",
    "id": "GSD-2023-34462"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-34462"
      ],
      "details": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026 clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final.",
      "id": "GSD-2023-34462",
      "modified": "2023-12-13T01:20:30.415541Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-34462",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "netty",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 4.1.94.Final"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "netty"
            }
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      },
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            "value": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026 clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
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      "problemtype": {
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                "cweId": "CWE-400",
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                "value": "CWE-400: Uncontrolled Resource Consumption"
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      },
      "references": {
        "reference_data": [
          {
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          },
          {
            "name": "https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32",
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            "url": "https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20230803-0001/",
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            "url": "https://security.netapp.com/advisory/ntap-20230803-0001/"
          },
          {
            "name": "https://www.debian.org/security/2023/dsa-5558",
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            "url": "https://www.debian.org/security/2023/dsa-5558"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-6mjq-h674-j845",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,4.1.94)",
          "affected_versions": "All versions before 4.1.94",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-400",
            "CWE-937"
          ],
          "date": "2023-08-03",
          "description": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026 clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final.",
          "fixed_versions": [
            "4.1.94.Final"
          ],
          "identifier": "CVE-2023-34462",
          "identifiers": [
            "CVE-2023-34462",
            "GHSA-6mjq-h674-j845"
          ],
          "not_impacted": "All versions starting from 4.1.94",
          "package_slug": "maven/io.netty/netty-all",
          "pubdate": "2023-06-22",
          "solution": "Upgrade to version 4.1.94.Final or above.",
          "title": "Allocation of Resources Without Limits or Throttling",
          "urls": [
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            "https://github.com/netty/netty/security/advisories/GHSA-6mjq-h674-j845",
            "https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32"
          ],
          "uuid": "621e4b03-1a29-4573-8b28-02e97ee59060"
        },
        {
          "affected_range": "(,4.1.94)",
          "affected_versions": "All versions before 4.1.94",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
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            "CWE-400",
            "CWE-937"
          ],
          "date": "2023-08-03",
          "description": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026 clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final.",
          "fixed_versions": [
            "4.1.94.Final"
          ],
          "identifier": "CVE-2023-34462",
          "identifiers": [
            "CVE-2023-34462",
            "GHSA-6mjq-h674-j845"
          ],
          "not_impacted": "All versions starting from 4.1.94",
          "package_slug": "maven/io.netty/netty-handler",
          "pubdate": "2023-06-22",
          "solution": "Upgrade to version 4.1.94.Final or above.",
          "title": "Allocation of Resources Without Limits or Throttling",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2023-34462",
            "https://github.com/netty/netty/security/advisories/GHSA-6mjq-h674-j845",
            "https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32"
          ],
          "uuid": "940bc6e4-3df7-40bc-af81-ff832ce19ec3"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.1.94",
                "vulnerable": true
              }
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          }
        ]
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        "description": {
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              "value": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026 clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final."
            }
          ]
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        "problemtype": {
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            {
              "name": "https://github.com/netty/netty/security/advisories/GHSA-6mjq-h674-j845",
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              "tags": [
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                "Vendor Advisory"
              ],
              "url": "https://github.com/netty/netty/security/advisories/GHSA-6mjq-h674-j845"
            },
            {
              "name": "https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32",
              "refsource": "MISC",
              "tags": [
                "Patch"
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              "url": "https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20230803-0001/",
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              "url": "https://security.netapp.com/advisory/ntap-20230803-0001/"
            },
            {
              "name": "https://www.debian.org/security/2023/dsa-5558",
              "refsource": "",
              "tags": [],
              "url": "https://www.debian.org/security/2023/dsa-5558"
            }
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        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-11-18T21:15Z",
      "publishedDate": "2023-06-22T23:15Z"
    }
  }
}


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