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freerdp2 — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-15103

In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto

Products
freerdp2
Affected versions
Not specified
Fixed versions
2.2.0+dfsg1-1
CVEs
CVE-2020-15103
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 12:41 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-15103

core-osv · Original source

Published 27 Jul 2020, 18:15 UTC

In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto

osv:DEBIAN-CVE-2020-15103

freerdp2

Fixed versions: 2.2.0+dfsg1-1

Complete source record
{
  "id": "ee224f89cf2ae1fe82379200e3c4636a3cf0c6a220e382c3efbf6e8b6c4fb5fa",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-15103",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-15103",
    "summary": "In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto",
    "evidence": "osv:DEBIAN-CVE-2020-15103",
    "products": [
      {
        "name": {
          "value": "freerdp2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.0+dfsg1-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "low",
    "structured": {
      "id": "DEBIAN-CVE-2020-15103",
      "aliases": [
        "DEBIAN-CVE-2020-15103"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.0+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-2020-15103.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:00:41.669587195Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-15103"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-15103"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-15103",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 451272,
  "published_at": "2020-07-27T18:15:13.903+00:00"
}