Security advisory

{
  "id": "9be296fa43e1bff4210e3902399f3f9269af8c151390364cfbb26fdc0b968b7b",
  "url": "https://osv.dev/vulnerability/CVE-2020-6750",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-6750",
    "summary": "GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. The greatest security relevance is in use cases where a proxy is used to help with privacy/anonymity, even though there is no technical barrier to a direct connection. NOTE: versions before 2.60 are unaffected.",
    "evidence": "osv:CVE-2020-6750",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-6750",
      "aliases": [
        "CVE-2020-6750"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gnome/glib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2edc5aa6dfffec0a48c8a1e9381b73d1096e0489"
                },
                {
                  "last_affected": "dac69d7128b3b66ed7007ab944eb629d30f4de4b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.60.0"
                      },
                      {
                        "last_affected": "2.62.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.62.4",
            "2.62.3",
            "2.62.2",
            "2.62.1",
            "2.62.0",
            "2.61.3",
            "2.61.2",
            "2.61.1",
            "2.61.0",
            "2.60.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6750.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.gnome.org/gnome/glib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2edc5aa6dfffec0a48c8a1e9381b73d1096e0489"
                },
                {
                  "last_affected": "dac69d7128b3b66ed7007ab944eb629d30f4de4b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.60.0"
                      },
                      {
                        "last_affected": "2.62.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.62.4",
            "2.62.3",
            "2.62.2",
            "2.62.1",
            "2.62.0",
            "2.61.3",
            "2.61.2",
            "2.61.1",
            "2.61.0",
            "2.60.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6750.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:39.512851544Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5RIFEDSRJ4P3WFCMDUOFQ2LEILZLMDW7/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMLGW55HOQXHMTIPH2PWXFRBNBWVO4W/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MEM7MMAXMWCDPUH4MTUZ763MBB64RRLJ/",
        "https://security.netapp.com/advisory/ntap-20200127-0001/",
        "https://bugzilla.suse.com/show_bug.cgi?id=1160668",
        "https://gitlab.gnome.org/GNOME/glib/issues/1989"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "30"
                  },
                  {
                    "last_affected": "30"
                  },
                  {
                    "introduced": "31"
                  },
                  {
                    "last_affected": "31"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-6750",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442421,
  "published_at": "2020-01-09T20:15:11.567+00:00"
}