Security advisory

{
  "id": "5a635c529f463565e022c941d38c25874c9d6d0defc163b4efccacca8f5e6d49",
  "url": "https://osv.dev/vulnerability/CVE-2020-15117",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15117",
    "summary": "In Synergy before version 1.12.0, a Synergy server can be crashed by receiving a kMsgHelloBack packet with a client name length set to 0xffffffff (4294967295) if the servers memory is less than 4 GB. It was verified that this issue does not cause a crash through the exception handler if the available memory of the Server is more than 4GB.",
    "evidence": "osv:CVE-2020-15117",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-15117",
      "aliases": [
        "CVE-2020-15117",
        "GHSA-chfm-333q-gfpp"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/symless/synergy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0a97c2be0da2d0df25cb86dfd642429e7a8bea39"
                }
              ],
              "database_specific": {
                "source": "REFERENCES"
              }
            }
          ],
          "versions": [
            "v1.11.1-stable",
            "v1.11.0-stable",
            "v1.10.3-stable",
            "v1.10.2-stable",
            "v1.8.1-stable",
            "v1.8.0-beta",
            "v1.7.3-stable",
            "v1.7.2-stable",
            "v1.7.1-stable",
            "v1.6.2",
            "v1.7.0",
            "v1.6.3-final",
            "v1.6.1",
            "v1.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15117.json"
          }
        }
      ],
      "modified": "2026-10-17T02:45:28.921544307Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VFDEQED64YLWQK2TF73EMXZDYX7YT2DD/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAQYCMBWNVCIEM27NPIKK3DGJCNBYLAK/",
        "https://github.com/symless/synergy-core/security/advisories/GHSA-chfm-333q-gfpp",
        "https://github.com/symless/synergy-core/commit/0a97c2be0da2d0df25cb86dfd642429e7a8bea39"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:symless:synergy:*:*:*:*:*:*:*:*"
            ],
            "source": "CPE_RANGE",
            "vendor_product": "symless:synergy",
            "extracted_events": [
              {
                "fixed": "1.12.0"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "introduced": "32"
              },
              {
                "last_affected": "32"
              },
              {
                "introduced": "33"
              },
              {
                "last_affected": "33"
              }
            ]
          },
          {
            "source": "DESCRIPTION",
            "extracted_events": [
              {
                "fixed": "1.12.0"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-15117",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 350172,
  "published_at": "2020-07-15T18:15:36.333+00:00"
}