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owncloud-client — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2015-4456

ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.

Products
owncloud-client
Affected versions
Not specified
Fixed versions
1.8.4+dfsg-1
CVEs
CVE-2015-4456
Confirmed fixed CVEs
Not specified
Updated in this feed
29 Oct 2026, 13:52 UTC · Revision 1

Source evidence

DEBIAN-CVE-2015-4456

core-osv · Original source

Published 26 Oct 2015, 14:59 UTC

ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.

osv:DEBIAN-CVE-2015-4456

owncloud-client

Fixed versions: 1.8.4+dfsg-1

owncloud-client

Fixed versions: 1.8.4+dfsg-1

Complete source record
{
  "id": "0c01537cb8e8ca5420ec294afd8869f7879320c02aa76d4e3df6645dcfbc3838",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2015-4456",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2015-4456",
    "summary": "ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.",
    "evidence": "osv:DEBIAN-CVE-2015-4456",
    "products": [
      {
        "name": {
          "value": "owncloud-client",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.8.4+dfsg-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "owncloud-client",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.8.4+dfsg-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DEBIAN-CVE-2015-4456",
      "aliases": [
        "DEBIAN-CVE-2015-4456"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.8.4+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "owncloud-client",
            "purl": "pkg:deb/debian/owncloud-client?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-4456.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.8.4+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "owncloud-client",
            "purl": "pkg:deb/debian/owncloud-client?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-4456.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-10T16:00:03.688095628Z",
      "provider": "osv",
      "upstream": [
        "CVE-2015-4456"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2015-4456"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2015-4456",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 250463,
  "published_at": "2015-10-26T14:59:00.107+00:00"
}