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freerdp2 — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-4031

In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.

Products
freerdp2
Affected versions
Not specified
Fixed versions
2.1.2+dfsg1-1
CVEs
CVE-2020-4031
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 14:02 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-4031

core-osv · Original source

Published 22 Jun 2020, 22:15 UTC

In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.

osv:DEBIAN-CVE-2020-4031

freerdp2

Fixed versions: 2.1.2+dfsg1-1

Complete source record
{
  "id": "6f0e3eeeec73f5e27a9fd93125105a8a063fcadecb99c9f942d45539f43425ee",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-4031",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-4031",
    "summary": "In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.",
    "evidence": "osv:DEBIAN-CVE-2020-4031",
    "products": [
      {
        "name": {
          "value": "freerdp2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.1.2+dfsg1-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-4031",
      "aliases": [
        "DEBIAN-CVE-2020-4031"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.1.2+dfsg1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "freerdp2",
            "purl": "pkg:deb/debian/freerdp2?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-4031.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:49.465097136Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-4031"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-4031"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-4031",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 453078,
  "published_at": "2020-06-22T22:15:13.163+00:00"
}