Security advisory

{
  "id": "2eed6237d92c2c6e6bcc073395b711233c9c51b53cae044a696eb017c87f9440",
  "url": "https://osv.dev/vulnerability/CVE-2020-35510",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-35510",
    "summary": "A flaw was found in jboss-remoting in versions before 5.0.20.SP1-redhat-00001. A malicious attacker could cause threads to hold up forever in the EJB server by writing a sequence of bytes corresponding to the expected messages of a successful EJB client request, but omitting the ACK messages, or just tamper with jboss-remoting code, deleting the lines that send the ACK message from the EJB client code resulting in a denial of service. The highest threat from this vulnerability is to system availability.",
    "evidence": "osv:CVE-2020-35510",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-35510",
      "aliases": [
        "CVE-2020-35510",
        "GHSA-p6j8-hgv5-m35g"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jboss-remoting/jboss-remoting",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7ddcda3c0180b17059b9991305e9c8f410710fb0"
                },
                {
                  "introduced": "7ddcda3c0180b17059b9991305e9c8f410710fb0"
                },
                {
                  "last_affected": "7ddcda3c0180b17059b9991305e9c8f410710fb0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:jboss-remoting:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.0.20"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:jboss-remoting:5.0.20:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0.20-NA"
                      },
                      {
                        "last_affected": "5.0.20-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.0.20-NA",
            "5.0.2.Final",
            "5.0.1.Final",
            "5.0.0.Final",
            "5.0.0.CR5",
            "5.0.0.CR4",
            "5.0.0.CR3",
            "5.0.0.CR2",
            "5.0.0.CR1",
            "5.0.0.Beta25",
            "5.0.0.Beta24",
            "5.0.0.Beta23",
            "5.0.0.Beta22",
            "5.0.0.Beta21",
            "5.0.0.Beta20",
            "5.0.0.Beta19",
            "5.0.0.Beta18",
            "5.0.0.Beta17",
            "5.0.0.Beta16",
            "5.0.0.Beta15",
            "5.0.0.Beta14",
            "5.0.0.Beta13",
            "5.0.0.Beta12",
            "5.0.0.Beta11",
            "5.0.0.Beta10",
            "5.0.0.Beta9",
            "5.0.0.Beta8",
            "5.0.0.Beta7",
            "5.0.0.Beta6",
            "5.0.0.Beta5",
            "5.0.0.Beta4",
            "5.0.0.Beta3",
            "5.0.0.Beta2",
            "5.0.0.Beta1",
            "4.0.0.Final",
            "4.0.0.Beta3",
            "4.0.0.Beta2",
            "4.0.0.Beta1",
            "3.2.0.GA",
            "3.2.0.CR9",
            "3.2.0.CR8",
            "3.2.0.CR7",
            "3.2.0.CR6",
            "3.2.0.CR5",
            "3.2.0.CR4",
            "3.2.0.CR3",
            "3.2.0.CR2",
            "3.2.0.CR1",
            "3.2.0.Beta6",
            "3.2.0.Beta5",
            "3.2.0.Beta4",
            "3.2.0.Beta3",
            "3.2.0.Beta2",
            "3.2.0.Beta1",
            "3.1.0.Beta2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35510.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:42.071323467Z",
      "provider": "osv",
      "references": [
        "https://bugzilla.redhat.com/show_bug.cgi?id=1905796"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-35510",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435289,
  "published_at": "2021-06-02T14:15:09.393+00:00"
}